English verb conjugation
CAN TICK

Regular verb: tick - ticked - ticked

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?