QUESTION AND ANSWER WITH CAN

Use the same form of the auxiliary can every time regardless the subject.

Questions without question words				Short answer
Can	you	speak	English?	Yes,	I	can.
Can	you	climb	a tree?	No,	I	can't. cannot.
Can	he	play	rugby?	Yes,	he	can.
Can	Mandy	read	poems?	Yes,	she	can.
Can	they	sing	nice songs?	No,	they	can't. cannot.

Questions with question words					Answer
What	can	we	ride?		We can ride skateboards.
Where	can	Frank	play	the trumpet?	Frank can play the trumpet in his room.
When	can	she	see	her friends?	She can see her friends after school