I have not touched this matter a long time

Question

I have an exam in my university on biology, and I didn't touch this matter a long time.

What is the right way to say it in present perfect?

Is it correct to say:

I have not touched this matter a long time?

Answer 1

In American English, I would use "material" or even "subject" rather than "matter." Thus,

I have an exam in my university on Biology, and I haven't touched this material in a long time.

An alternative to "touched" would be "studied."

I have an exam in my university on Biology, and I haven't studied this material in a long time.

Answer 2

I think this would be correct:

• I have an exam in my university on biology, and I haven't touched this matter in a long time.
• I have not touched this matter in a long time.