Question

Mr Basu _ (work) in this office for 25 years. ( use verb form)

Answer 1

Mr. Basu works in this office for 24 hours.

Answer 2

English is all about grammar.

Grammar is all about speaking and writing English in a correct way.

It is important to write correct grammar, to learn good English.

Most people get confused with verbs and tenses.

Now let us have a look at this question.

Mr. Basu is one person. So, here we will use "works".