English verb conjugation
CAN WRINKLE

Regular verb: wrinkle - wrinkled - wrinkled

Affirmation

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