English verb conjugation
CAN TICK

Regular verb: tick - ticked - ticked

Affirmation

Simple form	V-ing form
I can tick you can tick he can tick we can tick you can tick they can tick	I can be ticking you can be ticking he 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 he 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 he 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 he 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 he 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 he 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 he 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 he tick? can we tick? can you tick? can they tick?	can I be ticking? can you be ticking? can he 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 he 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 he 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 he 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 he 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 he 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 he have been ticking? can't we have been ticking? can't you have been ticking? can't they have been ticking?