English verb conjugation
CAN WRINKLE

Regular verb: wrinkle - wrinkled - wrinkled

Affirmation

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