Foster usually takes a direct object, such as foster growth or foster trust. By and in can appear in a sentence, but they normally add extra information rather than forming fixed combinations.
Use foster with a direct object: foster cooperation, foster creativity, foster development. By can introduce the means causing something to be fostered, and in can introduce the place or group where something develops.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use foster directly with nouns referring to qualities, relationships, or development.
By can introduce the factor or action that encourages something.
In often introduces the person, group, or environment affected.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Foster usually needs an object before any by phrase.
✕ The policy fostered by communication. ✓ The policy fostered cooperation by encouraging communication.In should introduce a location, group, or context.
✕ The workshop fostered in. ✓ The workshop fostered creativity in the staff.Foster usually refers to encouraging ongoing development.
✕ She fostered the light. ✓ She encouraged discussion.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
It can be correct when by introduces a cause or method, as in fostered by investment.
Yes. In often introduces the group or place where something develops, such as foster trust in children.
Foster means encourage, support, or help something develop over time.
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