can lark
Regular verb: lark - larked- larked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lark
you can lark
she can lark
we can lark
you can lark
they can lark 	I can be larking
you can be larking
she can be larking
we can be larking
you can be larking
they can be larking	I can have larked
you can have larked
she can have larked
we can have larked
you can have larked
they can have larked	I can have been larking
you can have been larking
she can have been larking
we can have been larking
you can have been larking
they can have been larking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't lark
you can't lark
she can't lark
we can't lark
you can't lark
they can't lark 	I can't be larking
you can't be larking
she can't be larking
we can't be larking
you can't be larking
they can't be larking	I can't have larked
you can't have larked
she can't have larked
we can't have larked
you can't have larked
they can't have larked	I can't have been larking
you can't have been larking
she can't have been larking
we can't have been larking
you can't have been larking
they can't have been larking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lark?
can you lark?
can she lark?
can we lark?
can you lark?
can they lark? 	can I be larking?
can you be larking?
can she be larking?
can we be larking?
can you be larking?
can they be larking? 	can I have larked?
can you have larked?
can she have larked?
can we have larked?
can you have larked?
can they have larked? 	can I have been larking?
can you have been larking?
can she have been larking?
can we have been larking?
can you have been larking?
can they have been larking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I lark?
can't you lark?
can't she lark?
can't we lark?
can't you lark?
can't they lark? 	can't I be larking?
can't you be larking?
can't she be larking?
can't we be larking?
can't you be larking?
can't they be larking? 	can't I have larked?
can't you have larked?
can't she have larked?
can't we have larked?
can't you have larked?
can't they have larked? 	can't I have been larking?
can't you have been larking?
can't she have been larking?
can't we have been larking?
can't you have been larking?
can't they have been larking?