ought to

Would be wise

Ought to expresses obligation, duty, or strong recommendation: You ought to apologize.

It also indicates probability or expectation: The package ought to arrive tomorrow.

Unlike must or should, ought to carries a softer moral weight—more advice than command.

The negative ought not to sounds formal; shouldn't dominates casual speech.

obligation

should

Expresses obligation or expectation

requirement · necessity · commitment · mandate · imperative · accountability · expected · bound · obliged · compelled

expectation

should

Expresses obligation or expectation

expected · anticipated · predicted · assumed · supposed · bound to · due to · forecast · projected · reckoned

Categories
Opposites
moral/practical obligation

ought toshouldn't

Advised against doing

must not · need not · needn't · mustn't · optional

Family

ought, oughts, oughtn't

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G