English Grammar Lessons And Worksheets
Must is a modal auxiliary verb. It has no –s in the third person singular. He must go. (NOT He musts go…) Must is followed by an infinitive without to. I must get some rest. You must finish the report today itself. You must...
Could is a modal auxiliary verb. There is no –s in the third person singular. Could is used to indicate ability that existed in the past. It is followed by an infinitive without to. In my younger days I could run...
Can is a modal auxiliary verb. It is followed by an infinitive without to. There is no –s in the third person singular. I can swim. She can sing. (NOT She cans …) He can run a mile in...