can whale
Regular verb: whale - whaled- whaled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can whale
you can whale
she can whale
we can whale
you can whale
they can whale 	I can be whaling
you can be whaling
she can be whaling
we can be whaling
you can be whaling
they can be whaling	I can have whaled
you can have whaled
she can have whaled
we can have whaled
you can have whaled
they can have whaled	I can have been whaling
you can have been whaling
she can have been whaling
we can have been whaling
you can have been whaling
they can have been whaling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't whale
you can't whale
she can't whale
we can't whale
you can't whale
they can't whale 	I can't be whaling
you can't be whaling
she can't be whaling
we can't be whaling
you can't be whaling
they can't be whaling	I can't have whaled
you can't have whaled
she can't have whaled
we can't have whaled
you can't have whaled
they can't have whaled	I can't have been whaling
you can't have been whaling
she can't have been whaling
we can't have been whaling
you can't have been whaling
they can't have been whaling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I whale?
can you whale?
can she whale?
can we whale?
can you whale?
can they whale? 	can I be whaling?
can you be whaling?
can she be whaling?
can we be whaling?
can you be whaling?
can they be whaling? 	can I have whaled?
can you have whaled?
can she have whaled?
can we have whaled?
can you have whaled?
can they have whaled? 	can I have been whaling?
can you have been whaling?
can she have been whaling?
can we have been whaling?
can you have been whaling?
can they have been whaling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I whale?
can't you whale?
can't she whale?
can't we whale?
can't you whale?
can't they whale? 	can't I be whaling?
can't you be whaling?
can't she be whaling?
can't we be whaling?
can't you be whaling?
can't they be whaling? 	can't I have whaled?
can't you have whaled?
can't she have whaled?
can't we have whaled?
can't you have whaled?
can't they have whaled? 	can't I have been whaling?
can't you have been whaling?
can't she have been whaling?
can't we have been whaling?
can't you have been whaling?
can't they have been whaling?