ought

1. (auxiliary, dialectal, formal)Indicating duty or obligation.

   I ought to vote in the coming election.

   sollen

   до́лженdólžen, обя́занobjázan

   пови́ненpovýnen, зобов'я́занийzobovʺjázanyj, му́ситьmúsytʹ

2. (auxiliary, dialectal, formal)Indicating advisability or prudence.

   You ought to always stand back from the edge of the platform.

   Do you think we ought to leave now?

   sollen

   сле́доватьslédovatʹ, ну́жноnúžno, бытьbytʹ

   слідslid, ва́ртоvárto

3. (auxiliary, dialectal, formal)Indicating desirability.

   He ought to read the book; it was very good.

   sollen

   сле́доватьslédovatʹ, ну́жноnúžno, жела́тельноželátelʹno

   слідslid, ва́ртоvárto

4. (auxiliary, dialectal, formal)Indicating likelihood or probability.

   We ought to arrive by noon if we take the motorway, shouldn't we?

   sollen

   мочьmočʹ, вероя́тноverojátno, предположи́тельноpredpoložítelʹno

   мабу́тьmabútʹ, пе́вноpévno

1. You ought to keep your promise.

   Треба дотримуватися обіцянок. — aandrusiak

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2. Tom ought to stop doing that.

   Том має припинити робити це. — deniko

   ruТом должен прекратить делать это. — sharptoothed

   deTom sollte aufhören, das zu tun. — pne

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3. I think you ought to go.

   Думаю, тобі треба йти. — deniko

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4. You ought to ask him for advice.

   Тобі слід попросити у нього поради. — deniko

   ruТебе следует спросить у него совета. — megaton

   deDu solltest ihn um Rat fragen. — Robroy

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5. I think you ought to forgive us.

   Я думаю, тобі треба нас пробачити. — deniko

   deIch finde, du solltest uns verzeihen. — raggione

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Modal verbs have one form for every person and take a bare infinitive.