Prepositions after adjectives

Strong with different prepositions

Strong is commonly followed by in, with, or on depending on meaning. Some combinations are limited or context-based rather than fixed adjective patterns.

Quick answer

Which prepositions are used with strong?

Use strong in for skill or subject areas, strong with for handling people or things, and strong on for knowledge or policy areas. Strong for usually means suitable or characteristic for a group. Strong of is uncommon as a fixed adjective pattern.

She is strong in maths.
He's strong with clients.
The candidate is strong on policy details.

Choose the pattern by meaning

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

1
strong in + subject/skill

Talking about ability in an area

Use strong in to describe skill, knowledge, or performance in a subject or activity.

The team is strong in defence.
She's particularly strong in negotiation.
2
strong with + people/things

Talking about handling or dealing with something

Use strong with when referring to communication, relationships, or practical handling.

He's strong with children.
The company is strong with customer support.
3
strong on + topic

Talking about knowledge or emphasis

Use strong on for expertise, detailed knowledge, or emphasis in an area.

The report is strong on evidence.
She is strong on environmental policy.
4
strong for + group/purpose

Talking about suitability or unusual quality

Use strong for to compare someone or something with a standard or group.

The coffee is strong for instant coffee.
He's strong for his age.

See the difference in context

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

Construction
Example
Meaning
strong in
She is strong in chemistry.
skilled or capable in a subject or activity
strong with
He's strong with difficult customers.
good at dealing with people or situations
strong on
The course is strong on practical training.
focused on or rich in a topic
strong for
That engine is strong for its size.
impressive compared with a standard
strong of
It was strong of him to stay calm.
rare and literary; more natural English usually uses another structure

Common mistakes

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

Using strong of as a normal adjective pattern

Strong of is not a common modern pattern after the adjective strong.

✕ She is strong of mathematics. ✓ She is strong in mathematics.

Confusing strong in and strong with

Strong in refers to ability in a field, while strong with refers to dealing with people or things.

✕ He's strong in customers. ✓ He's strong with customers.

Using strong on for physical strength

Strong on usually refers to knowledge, detail, or emphasis, not physical power.

✕ He's strong on lifting weights. ✓ He's strong at lifting weights.

Quick practice

Choose the expression that matches the intended meaning.

1. She is very strong ___ languages.
2. The manager is strong ___ client communication.
3. The textbook is strong ___ real-world examples.

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Frequently asked questions

Can I say strong in sports?

Yes. Strong in can describe ability in sports, subjects, or professional skills.

Is strong with only for people?

No. It can also refer to handling things or areas, such as strong with numbers or software.

Is strong of correct English?

It exists in rare or literary styles, but it is not common in everyday modern English.

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