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Prepositions after adjectives

sober for or sober in?

Sober for is common when talking about a period of time. Sober in is less common and usually introduces a context rather than a fixed adjective pattern.

Quick answer

Which is correct: sober for or sober in?

Use sober for to describe how long someone has avoided alcohol or drugs. Sober in is uncommon as a fixed pattern, though in can introduce a place or situation.

She has been sober for three years.
He stayed sober for the entire event.
She remained sober in difficult situations.
They have been sober for months.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
sober for + period

Duration without alcohol or drugs

Use sober for to express a length of time.

He has been sober for six months.
She stayed sober for the whole pregnancy.
2
sober in + situation

Behaviour in a context

In may introduce a situation where someone remains serious or not intoxicated, but it is not a common fixed pattern.

He remained sober in public appearances.
She stayed sober in stressful moments.
3
sober about + issue

Serious and realistic attitude

Sober about means serious and not emotional about a topic.

The report was sober about economic risks.
She is sober about the challenges ahead.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
sober for
He has been sober for a year.
not drinking or using drugs during a period
sober in
She stayed sober in public.
in introduces the setting or context
sober about
They are sober about the situation.
serious and realistic about something
sober from
He is sober from alcohol.
used in some contexts, especially treatment language

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using sober in for duration

Use for to express a period of time.

✕ She has been sober in two years. ✓ She has been sober for two years.

Confusing sober about with sober for

About expresses attitude; for expresses time.

✕ He is sober for the risks involved. ✓ He is sober about the risks involved.

Using sober in as a fixed complement

In usually introduces a context rather than completing the adjective.

✕ They are sober in success. ✓ They are sober about their success.

Omitting the time expression after for

Sober for normally includes a duration or event.

✕ He has been sober for. ✓ He has been sober for six weeks.

Quick practice

Choose the expression that matches the intended meaning.

1. She has been sober ___ five months.
2. The minister was sober ___ the financial crisis.
3. He stayed sober ___ public events.

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Frequently asked questions

What does sober for mean?

It usually means not drinking alcohol or using drugs for a period of time.

Is sober in common?

Not as a fixed adjective pattern. It usually introduces a situation or setting.

Can sober describe attitude?

Yes. Sober about means serious, calm, and realistic.

sacred-to-in-by-of, for "sad for" or "sad about"? "safe for", "safe from" or "safe in"? sanguine about, in, of, on or for? "satisfactory to" or "satisfactory for"? satisfied with, of, by, in or on? "satisfying for" or "satisfying to"? scarce in, for, at, on or of? scared of, to, about, for or by? "scary for" or "scary to"? "scathing about", "scathing in" or "scathing of"? "sceptical about" or "sceptical of"?

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