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 cannot wrinkle you cannot wrinkle he cannot wrinkle we cannot wrinkle you cannot wrinkle they cannot wrinkle	I cannot be wrinkling you cannot be wrinkling he cannot be wrinkling we cannot be wrinkling you cannot be wrinkling they cannot be wrinkling
Perfect	V-ing perfect
I cannot have wrinkled you cannot have wrinkled he cannot have wrinkled we cannot have wrinkled you cannot have wrinkled they cannot have wrinkled	I cannot have been wrinkling you cannot have been wrinkling he cannot have been wrinkling we cannot have been wrinkling you cannot have been wrinkling they cannot 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 I not wrinkle? can you not wrinkle? can he not wrinkle? can we not wrinkle? can you not wrinkle? can they not wrinkle?	can I not be wrinkling? can you not be wrinkling? can he not be wrinkling? can we not be wrinkling? can you not be wrinkling? can they not be wrinkling?
Perfect	V-ing perfect
can I not have wrinkled? can you not have wrinkled? can he not have wrinkled? can we not have wrinkled? can you not have wrinkled? can they not have wrinkled?	can I not have been wrinkling? can you not have been wrinkling? can he not have been wrinkling? can we not have been wrinkling? can you not have been wrinkling? can they not have been wrinkling?