can click
Regular verb: click - clicked- clicked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can click
you can click
she can click
we can click
you can click
they can click 	I can be clicking
you can be clicking
she can be clicking
we can be clicking
you can be clicking
they can be clicking	I can have clicked
you can have clicked
she can have clicked
we can have clicked
you can have clicked
they can have clicked	I can have been clicking
you can have been clicking
she can have been clicking
we can have been clicking
you can have been clicking
they can have been clicking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot click
you cannot click
she cannot click
we cannot click
you cannot click
they cannot click 	I cannot be clicking
you cannot be clicking
she cannot be clicking
we cannot be clicking
you cannot be clicking
they cannot be clicking	I cannot have clicked
you cannot have clicked
she cannot have clicked
we cannot have clicked
you cannot have clicked
they cannot have clicked	I cannot have been clicking
you cannot have been clicking
she cannot have been clicking
we cannot have been clicking
you cannot have been clicking
they cannot have been clicking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I click?
can you click?
can she click?
can we click?
can you click?
can they click? 	can I be clicking?
can you be clicking?
can she be clicking?
can we be clicking?
can you be clicking?
can they be clicking? 	can I have clicked?
can you have clicked?
can she have clicked?
can we have clicked?
can you have clicked?
can they have clicked? 	can I have been clicking?
can you have been clicking?
can she have been clicking?
can we have been clicking?
can you have been clicking?
can they have been clicking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not click?
can you not click?
can she not click?
can we not click?
can you not click?
can they not click? 	can I not be clicking?
can you not be clicking?
can she not be clicking?
can we not be clicking?
can you not be clicking?
can they not be clicking? 	can I not have clicked?
can you not have clicked?
can she not have clicked?
can we not have clicked?
can you not have clicked?
can they not have clicked? 	can I not have been clicking?
can you not have been clicking?
can she not have been clicking?
can we not have been clicking?
can you not have been clicking?
can they not have been clicking?