I really ought to go home

You should/ought to answer her letter — Тебе следует (нужно) ответить на ее письмо.

You shouldn't/oughtn't to run so quickly — Не стоит бежать так быстро.

Children should/ought to be polite — Дети должны быть вежливыми.

Law should/ought to prohibit only actions hurtful to Society — Закон должен препятствовать совершению только таких действий, которые вредны для общества.

"Can I have an apple?" "There should/ought to be some in the fridge" — Можно мне яблоко? - Да. Несколько яблок должно лежать в холодильнике.

John should/ought to know her address — Джон должен бы знать ее адрес.

You should/ought to be able to see her — Вы должны будете увидеть ее (=Вы, скорее всего, увидите ее).

You should/ought to have done the work. Why didn't you?— Ты должен был выполнить эту работу. Почему ты этого не сделал?

He should/ought to have been home long ago. Where is he? — Он уже давно должен был быть дома (Ему уже давно следовало быть дома). Где он?

I should/ought to have translated the book by the end of the month — Я должен перевести (я скорее всего переведу) книгу к концу месяца.

You shouldn't/oughtn't to have invited him — Не нужно вам было приглашать его (но вы его пригласили).

You must wash your hands before you eat! — Ты должен мыть руки перед едой.

You should drink more water: it's useful — Тебе следовало бы пить больше воды: это полезно.

They must be working now — Они должны сейчас работать (Я практически уверен, что они работают).

They should/ought to be working now — Они должны бы были сейчас работать (Но, может быть, не работают).

She looks glad: she must really enjoy the party — Она выглядит довольной: должно быть, ей нравится эта вечеринка.

— О других модальных глаголах и конструкциях, выражающих долженствование см. must, have to, have got to, be to

— О must в отрицательной форме см. needn't, don't need to, don't have to, mustn't

know the difference between right and wrong — den Unterschied zwischen Gut und Böse kennen

he wouldn't know the difference — er wüsste den Unterschied nicht

it is known that... — man weiß, dass...; es ist bekannt, dass...

he doesn't want to know — er will nichts davon wissen od. hören

I know what — ich weiß was (ugs.)

you know — (coll.): (as reminder) weißt du [noch]

you know something or what? — weißt du was?

you never know — man kann nie wissen (ugs.)

somebody has [never] been known to do something — jemand hat bekanntlich [noch nie] etwas getan

don't I know it! — (coll.) das weiß ich nur zu gut

what do you know [about that]? — (coll.): (that is surprising) was sagst du dazu?

somebody is not to know — (is not to be told) jemand soll nichts wissen (about, of von); (has no way of learning) jemand kann nicht wissen

not know what hit one — (fig.) gar nicht begreifen, was geschehen ist

know different or otherwise — es besser wissen

know what's what — wissen, wie es in der Welt zugeht

do you know,... — stell dir [mal] vor,...

know how to mend fuses — wissen, wie man Sicherungen repariert

you don't really know him — du kennst ihn nicht gut genug

you know what he/it is — (is like) du kennst ihn ja/du weißt ja, wie es ist

she knows all the answers — sie weiß Bescheid, sie kennt sich aus; (pej) sie weiß immer alles besser

he might even be dead for all I know — vielleicht ist er sogar tot, was weiß ich

that's what I'd like to know ( too) — das möchte ich auch wissen

I've been a fool and don't I know it! (inf) — ich sehs ja ein, ich war doof (inf), ich war vielleicht doof (inf)

she's angry! – don't I know it! (inf) — sie ist wütend! – wem sagst du das! (inf)

to know sb by his voice/walk etc — jdn an der Stimme/am Gang etc erkennen

this is the end of the welfare system as we know it — das ist das Ende des uns bekannten Wohlfahrtssystems

don't you know your right from your left? — können Sie rechts und links nicht unterscheiden?

he doesn't know one end of a horse/hammer from the other — er hat keine Ahnung von Pferden/keine Ahnung, was ein Hammer ist (inf)

I've never known him (to) smile — ich habe ihn noch nie lächeln sehen, ich habe es noch nie erlebt, dass er lächelt

have you ever known me (to) tell a lie? — haben Sie mich jemals lügen hören?

I know! — ich weiß!, weiß ich (doch)!; (having a good idea) ich weiß was!, ich habe eine Idee!

I wouldn't know (inf) — weiß ich (doch) nicht (inf)

I'm damned if I know (inf) — ich habe echt keinen Schimmer

when I saw the ambulance, I knew (that) something was wrong — als ich den Krankenwagen sah, wusste ich, dass etwas nicht stimmte __diams; to know why... wissen, warum...

to know how to do sth (in theory) — wissen, wie man etw macht; (in practice) etw tun können

I know better than that — ich bin ja nicht ganz dumm

to get to know sth (methods, techniques, style, pronunciation etc) — etw lernen; habits, faults, shortcuts etc etw herausfinden

then there was this man, you know, and... — und da war dieser Mann, nicht (wahr), und...

it's long and purple and, you know, sort of crinkly — es ist lang und lila und, na ja, so kraus

(if you) know what I mean — du weißt schon __diams; you never know man kann nie wissen

it was nothing to do with me, I'll have you know! — es hatte nichts mit mir zu tun, damit du es weißt! __diams; there's no knowing (inf) das kann keiner sagen, das weiß niemand

there's no knowing what he'll do — man weiß nie, was er noch tut __diams; what do you know! (inf) sieh mal einer an!

what do you know! I've just seen her! (inf) — stellen Sie sich vor, ich habe sie eben gesehen __diams; to be known → also known

she wishes to be known as Mrs White — sie möchte Frau White genannt werden → also known __diams; to make sb/sth known jdn/etw bekannt machen

to make one's presence known — sich melden (to bei) __diams; to become known bekannt werden

he doesn't want to know — er will nichts davon wissen od. hören

I know what — ich weiß was (ugs.)

you know — (coll.): (as reminder) weißt du [noch]

you know something or what? — weißt du was?

you never know — man kann nie wissen (ugs.)

don't I know it! — (coll.) das weiß ich nur zu gut

what do you know [about that]? — (coll.): (that is surprising) was sagst du dazu?

somebody is not to know — (is not to be told) jemand soll nichts wissen (about, of von); (has no way of learning) jemand kann nicht wissen

not know what hit one — (fig.) gar nicht begreifen, was geschehen ist

know different or otherwise — es besser wissen

you know what he/it is — (is like) du kennst ihn ja/du weißt ja, wie es ist

to know how to do — sapere fare; (stressing method) sapere come fare

to let it be known o to make it known that fare sapere che; it has been known to snow there hanno detto che lì nevica; if I know him se lo conosco; he is known to the police è conosciuto dalla polizia; as you well know come ben sai; (do) you know something? do you know what? (ma lo) sai? there's no knowing whether non si può sapere se; to know one's way around fig. sapersi togliere dagli impicci; to know one's way around a town sapersi orientare in una città; to know one's way around a computer sapersela cavare con i computer; I know what! you could... ho un'idea! potresti...; he knows nothing about it — non ne sa niente

to know about — (have information) essere al corrente di [ event]; (have skill) conoscere [computing, engines]

to know of — (from experience) conoscere; (from information) avere sentito parlare di

to let sb. know of o about mettere qcn. a conoscenza di [ plans]; we'll let you know vi faremo sapere; how should I know! come faccio a saperlo! if you must know se proprio vuoi saperlo; if I were angry with you, you'd know about it se fossi arrabbiato con te, te ne accorgeresti; you know better than to argue with him hai di meglio da fare che metterti a discutere con lui; you ought to have known better non avresti dovuto farlo; he says he came home early but I know better — dice che è arrivato a casa presto ma conoscendolo non ci credo

to be in the know (about sth.) — colloq. essere al corrente (di qcs.)

to know how to do — sapere fare; (stressing method) sapere come fare

to let it be known o to make it known that fare sapere che; it has been known to snow there hanno detto che lì nevica; if I know him se lo conosco; he is known to the police è conosciuto dalla polizia; as you well know come ben sai; (do) you know something? do you know what? (ma lo) sai? there's no knowing whether non si può sapere se; to know one's way around fig. sapersi togliere dagli impicci; to know one's way around a town sapersi orientare in una città; to know one's way around a computer sapersela cavare con i computer; I know what! you could... ho un'idea! potresti...; he knows nothing about it — non ne sa niente

to know about — (have information) essere al corrente di [ event]; (have skill) conoscere [computing, engines]

to know of — (from experience) conoscere; (from information) avere sentito parlare di

to let sb. know of o about mettere qcn. a conoscenza di [ plans]; we'll let you know vi faremo sapere; how should I know! come faccio a saperlo! if you must know se proprio vuoi saperlo; if I were angry with you, you'd know about it se fossi arrabbiato con te, te ne accorgeresti; you know better than to argue with him hai di meglio da fare che metterti a discutere con lui; you ought to have known better non avresti dovuto farlo; he says he came home early but I know better — dice che è arrivato a casa presto ma conoscendolo non ci credo

to be in the know (about sth.) — colloq. essere al corrente (di qcs.)

you must not/never do that — das darfst du nicht/nie tun

you must remember... — du darfst nicht vergessen,...; du musst daran denken,...

you mustn't do that again! — tu das [ja] nie wieder!

I must get back to the office — ich muss wieder ins Büro

if you must know — wenn du es unbedingt wissen willst

I must not sit here drinking coffee — ich sollte od. dürfte eigentlich nicht hier sitzen und Kaffee trinken

it must be about 3 o'clock — es wird wohl od. dürfte od. müsste etwa 3 Uhr sein

it must have stopped raining by now — es dürfte od. müsste inzwischen aufgehört haben zu regnen

there must have been forty of them — (forty) es müssen vierzig gewesen sein; (probably about forty) es dürften etwa vierzig gewesen sein

he must come just when... — er muss/musste natürlich od. ausgerechnet kommen, wenn/als...

you must ( go and) see this church — Sie müssen sich (dat) diese Kirche unbedingt ansehen

do it if you must — tu, was du nicht lassen kannst

we must away (old) — wir müssen fort

he ( surely) must be there by now — er MUSS doch inzwischen da sein

I must have lost it — ich habe es wohl verloren, ich muss es wohl verloren haben; (with stress on must) ich muss es verloren haben

you must have heard of him — Sie haben bestimmt schon von ihm gehört; (with stress on must) Sie müssen doch schon von ihm gehört haben

there must have been five of them — es müssen fünf gewesen sein; (about five) es waren wohl etwa fünf; (at least five) es waren bestimmt fünf

there must be a reason for it — es gibt bestimmt eine Erklärung dafür; (with stress on must) es muss doch eine Erklärung dafür geben

you must be crazy! — du bist ja or wohl wahnsinnig!

/an umbrella is a must — man braucht unbedingt Humor/einen Schirm, Humor/ein Schirm ist unerlässlich

I must not sit here drinking coffee — ich sollte od. dürfte eigentlich nicht hier sitzen und Kaffee trinken

it must be about 3 o'clock — es wird wohl od. dürfte od. müsste etwa 3 Uhr sein

it must have stopped raining by now — es dürfte od. müsste inzwischen aufgehört haben zu regnen

there must have been forty of them — (forty) es müssen vierzig gewesen sein; (probably about forty) es dürften etwa vierzig gewesen sein

he must come just when... — er muss/musste natürlich od. ausgerechnet kommen, wenn/als...

not to know where ou which way to turn — fig ne pas savoir à quel saint se vouer

to be in the know — (colloq) être bien informé

to be in the know about something — (colloq) être au courant de quelque chose