In this task, you will be shown an incorrect English sentence. You need to generate a corrected form of the input sentence.

Ex Input:
However I still believe that learnng facts are important for student . 

Ex Output:
However , I still believe that learning facts are important for students . 


Ex Input:
But when teacher ask me did I understand it , I said yes . 

Ex Output:
But when the teacher asked me if I understand it , I said yes . 


Ex Input:
The product is always presented in a perfect way . 

Ex Output:

The product is always presented in a perfect way . 


