can wrinkle
Regular verb: wrinkle - wrinkled- wrinkled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can wrinkle
you can wrinkle
she can wrinkle
we can wrinkle
you can wrinkle
they can wrinkle 	I can be wrinkling
you can be wrinkling
she can be wrinkling
we can be wrinkling
you can be wrinkling
they can be wrinkling	I can have wrinkled
you can have wrinkled
she can have wrinkled
we can have wrinkled
you can have wrinkled
they can have wrinkled	I can have been wrinkling
you can have been wrinkling
she can have been wrinkling
we can have been wrinkling
you can have been wrinkling
they can have been wrinkling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't wrinkle
you can't wrinkle
she can't wrinkle
we can't wrinkle
you can't wrinkle
they can't wrinkle 	I can't be wrinkling
you can't be wrinkling
she can't be wrinkling
we can't be wrinkling
you can't be wrinkling
they can't be wrinkling	I can't have wrinkled
you can't have wrinkled
she can't have wrinkled
we can't have wrinkled
you can't have wrinkled
they can't have wrinkled	I can't have been wrinkling
you can't have been wrinkling
she can't have been wrinkling
we can't have been wrinkling
you can't have been wrinkling
they can't have been wrinkling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I wrinkle?
can you wrinkle?
can she wrinkle?
can we wrinkle?
can you wrinkle?
can they wrinkle? 	can I be wrinkling?
can you be wrinkling?
can she be wrinkling?
can we be wrinkling?
can you be wrinkling?
can they be wrinkling? 	can I have wrinkled?
can you have wrinkled?
can she have wrinkled?
can we have wrinkled?
can you have wrinkled?
can they have wrinkled? 	can I have been wrinkling?
can you have been wrinkling?
can she have been wrinkling?
can we have been wrinkling?
can you have been wrinkling?
can they have been wrinkling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I wrinkle?
can't you wrinkle?
can't she wrinkle?
can't we wrinkle?
can't you wrinkle?
can't they wrinkle? 	can't I be wrinkling?
can't you be wrinkling?
can't she be wrinkling?
can't we be wrinkling?
can't you be wrinkling?
can't they be wrinkling? 	can't I have wrinkled?
can't you have wrinkled?
can't she have wrinkled?
can't we have wrinkled?
can't you have wrinkled?
can't they have wrinkled? 	can't I have been wrinkling?
can't you have been wrinkling?
can't she have been wrinkling?
can't we have been wrinkling?
can't you have been wrinkling?
can't they have been wrinkling?