Grammar fix

build trust

develop confidence (in someone or something)

to gradually create a feeling of confidence and reliability in a person or relationship through actions, honesty, or time

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

It takes time to build trust with new colleagues.relationships
In my opinion, it is important for teachers to build trust with their students so that they feel comfortable asking questions.IELTS speaking

Pattern: build trust (with/in/between someone)

WrongWe need to build a trust with clients.

RightWe need to build trust with clients.

Here 'trust' is uncountable — no 'a'.

Patternbuild trust (with/in/between someone)

Choose the version that sounds natural in speech.

Stiff It is necessary to cultivate and establish a foundation of mutual trust.

Natural It takes time to build trust.

'Cultivate and establish a foundation of mutual trust' is HR-speak; 'build trust' is plain.

Words that usually travel with it.

Not the same as 'gain trust,' which focuses more on earning someone's trust, while 'build trust' is about the ongoing process.