I would have helped you if you would have told me earlier.
ERROR :  CORRECTION:

No sooner the bell rang, the students rushed out.
ERROR :  CORRECTION:

She insisted to accompanying us to the museum.
ERROR :  CORRECTION:

He is working here since five years.
ERROR :  CORRECTION:

Each of the boys have submitted their assignment
ERROR :  CORRECTION:

Unless you study hard, you not pass the exam.
ERROR :  CORRECTION:

The teacher, along with the students, were present in the lab.
ERROR :  CORRECTION:

One of my friend is going to the USA next week.
ERROR :  CORRECTION:

Hardly had he reached the station then the train departed.
ERROR :  CORRECTION:

She is good in playing the piano.
ERROR :  CORRECTION: