Basic grammar errors

1	I have a lot of works to do in my job.

2	I'm working in my company for three years.

3	I must to try to remember her name.

4	Who did see you leaving the office?

5	If you're feeling unwell you may see a doctor.

6	She sleeps now. Can you call back later?

7	I'm not understanding how to do this exercise.

8	You are Clara, don't you?

9	The MTR is very convenience.

1	I have a lot of works to do in my job.

2	I'm working in my company for three years.

3	I must to try to remember her name.

4	Who did see you leaving the office?

5	If you're feeling unwell you may see a doctor.

6	She sleeps now. Can you call back later?

7	I'm not understanding how to do this exercise.

8	You are Clara, don't you?

9	The MTR is very convenience.

Answers

1	I have a lot of work to do in my job.

2	I've worked / been working for my company for three years.

3	I must try to remember her name.

4	Who saw you leaving the office?

5	If you're feeling unwell you should see a doctor.

6	She is sleeping now. Can you call back later?

7	I don't understand how to do this exercise.

8	You are Clara, aren't you?

9	The MTR is very convenient.