Grammar fix

great effort

hard work

A lot of hard work or energy put into doing something, especially when trying to achieve a good result.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

She made a great effort to finish her project on time.daily life
In my opinion, students who show great effort in their studies are more likely to succeed.IELTS speaking

Pattern: make/put in/show great effort; with possessive (her/his/their great effort)

WrongShe did a great effort.

RightShe made a great effort. / put in a lot of effort.

You MAKE an effort or PUT effort in — you don't 'do' an effort.

Patternmake/put in/show great effort; with possessive (her/his/their great effort)

Choose the version that sounds natural in speech.

Stiff She expended a considerable amount of exertion on the project.

Natural She put a lot of effort into the project.

Natives 'put effort into' something; 'expend exertion' is unnatural.

Words that usually travel with it.

'Great effort' is more positive than just 'effort' and shows you really notice the hard work.