English verb conjugation
CAN CRINKLE

Regular verb: crinkle - crinkled - crinkled

Affirmation

Simple form	V-ing form
I can crinkle you can crinkle he can crinkle we can crinkle you can crinkle they can crinkle	I can be crinkling you can be crinkling he can be crinkling we can be crinkling you can be crinkling they can be crinkling
Perfect	V-ing perfect
I can have crinkled you can have crinkled he can have crinkled we can have crinkled you can have crinkled they can have crinkled	I can have been crinkling you can have been crinkling he can have been crinkling we can have been crinkling you can have been crinkling they can have been crinkling

Negation

Simple form	V-ing form
I can't crinkle you can't crinkle he can't crinkle we can't crinkle you can't crinkle they can't crinkle	I can't be crinkling you can't be crinkling he can't be crinkling we can't be crinkling you can't be crinkling they can't be crinkling
Perfect	V-ing perfect
I can't have crinkled you can't have crinkled he can't have crinkled we can't have crinkled you can't have crinkled they can't have crinkled	I can't have been crinkling you can't have been crinkling he can't have been crinkling we can't have been crinkling you can't have been crinkling they can't have been crinkling

Interrogative form

Simple form	V-ing form
can I crinkle? can you crinkle? can he crinkle? can we crinkle? can you crinkle? can they crinkle?	can I be crinkling? can you be crinkling? can he be crinkling? can we be crinkling? can you be crinkling? can they be crinkling?
Perfect	V-ing perfect
can I have crinkled? can you have crinkled? can he have crinkled? can we have crinkled? can you have crinkled? can they have crinkled?	can I have been crinkling? can you have been crinkling? can he have been crinkling? can we have been crinkling? can you have been crinkling? can they have been crinkling?

Interro-negative form

Simple form	V-ing form
can't I crinkle? can't you crinkle? can't he crinkle? can't we crinkle? can't you crinkle? can't they crinkle?	can't I be crinkling? can't you be crinkling? can't he be crinkling? can't we be crinkling? can't you be crinkling? can't they be crinkling?
Perfect	V-ing perfect
can't I have crinkled? can't you have crinkled? can't he have crinkled? can't we have crinkled? can't you have crinkled? can't they have crinkled?	can't I have been crinkling? can't you have been crinkling? can't he have been crinkling? can't we have been crinkling? can't you have been crinkling? can't they have been crinkling?