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Prepositions after adjectives

Fruitful in or fruitful for?

Fruitful for is common when describing benefits or positive results. Fruitful in appears with areas or activities where success is achieved.

Quick answer

How to use fruitful with prepositions

Use fruitful for when something produces good results for a person, group, or purpose. Use fruitful in when referring to success in an activity, field, or discussion.

The meeting was fruitful for both teams.
She has been fruitful in her research.
The talks proved fruitful for future cooperation.

Choose the pattern by meaning

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

1
fruitful for + person/purpose

Showing benefit or positive results

Use fruitful for when something brings useful or successful results.

The partnership was fruitful for the company.
The discussion could be fruitful for future planning.
2
fruitful in + activity/field

Showing success within an area

Use fruitful in to describe successful work or achievement in a field or activity.

They were highly fruitful in scientific research.
She remained fruitful in her later career.

See the difference in context

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

Construction
Example
Meaning
fruitful for
The agreement was fruitful for both sides.
producing benefits or good results
fruitful in
He was fruitful in developing new methods.
successful within an activity or area
fruitful to
Fruitful to is uncommon as a direct adjective pattern.
generally avoided in standard usage

Common mistakes

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

Using fruitful to as a direct pattern

Fruitful is not usually followed directly by to.

✕ The workshop was fruitful to the team. ✓ The workshop was fruitful for the team.

Confusing for and in

For emphasizes benefit; in emphasizes the area of activity.

✕ She was fruitful for research. ✓ She was fruitful in research.

Using fruitful with clearly negative outcomes

Fruitful usually suggests productive or positive results.

✕ The argument was fruitful for confusion. ✓ The discussion was fruitful for new ideas.

Quick practice

Choose the expression that matches the intended meaning.

1. The negotiations were fruitful ___ both countries.
2. She has been fruitful ___ her academic work.
3. Which pattern is generally uncommon?

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Frequently asked questions

Can I say fruitful for someone?

Yes. It means something produced useful or positive results for that person or group.

What does fruitful in mean?

It refers to being productive or successful within a field, activity, or process.

Is fruitful to correct?

Not usually as a direct complement after fruitful. Other structures are more natural.

face-to-face-with-in-at-for, to "fair to" or "fair in"? faithful to, in, of, with or for? falling of, in, out, into or off? "false in" or "false to"? famed for, as, in or throughout? familiar with, to, from or in? famous for, in, of, by or as? fanatical about, in, as, for or of? "fantastic for" or "fantastic in"? far from, in, to, for or with? fascinating to, about, in, for or as?

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