can tick
Regular verb: tick - ticked- ticked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can tick
you can tick
she can tick
we can tick
you can tick
they can tick 	I can be ticking
you can be ticking
she can be ticking
we can be ticking
you can be ticking
they can be ticking	I can have ticked
you can have ticked
she can have ticked
we can have ticked
you can have ticked
they can have ticked	I can have been ticking
you can have been ticking
she can have been ticking
we can have been ticking
you can have been ticking
they can have been ticking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't tick
you can't tick
she can't tick
we can't tick
you can't tick
they can't tick 	I can't be ticking
you can't be ticking
she can't be ticking
we can't be ticking
you can't be ticking
they can't be ticking	I can't have ticked
you can't have ticked
she can't have ticked
we can't have ticked
you can't have ticked
they can't have ticked	I can't have been ticking
you can't have been ticking
she can't have been ticking
we can't have been ticking
you can't have been ticking
they can't have been ticking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I tick?
can you tick?
can she tick?
can we tick?
can you tick?
can they tick? 	can I be ticking?
can you be ticking?
can she be ticking?
can we be ticking?
can you be ticking?
can they be ticking? 	can I have ticked?
can you have ticked?
can she have ticked?
can we have ticked?
can you have ticked?
can they have ticked? 	can I have been ticking?
can you have been ticking?
can she have been ticking?
can we have been ticking?
can you have been ticking?
can they have been ticking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I tick?
can't you tick?
can't she tick?
can't we tick?
can't you tick?
can't they tick? 	can't I be ticking?
can't you be ticking?
can't she be ticking?
can't we be ticking?
can't you be ticking?
can't they be ticking? 	can't I have ticked?
can't you have ticked?
can't she have ticked?
can't we have ticked?
can't you have ticked?
can't they have ticked? 	can't I have been ticking?
can't you have been ticking?
can't she have been ticking?
can't we have been ticking?
can't you have been ticking?
can't they have been ticking?