English verb conjugation
COULD PRICKLE

Regular verb: prickle - prickled - prickled

Affirmation

Simple form	V-ing form
I could prickle you could prickle she could prickle we could prickle you could prickle they could prickle	I could be prickling you could be prickling she could be prickling we could be prickling you could be prickling they could be prickling
Perfect	V-ing perfect
I could have prickled you could have prickled she could have prickled we could have prickled you could have prickled they could have prickled	I could have been prickling you could have been prickling she could have been prickling we could have been prickling you could have been prickling they could have been prickling

Negation

Simple form	V-ing form
I could not prickle you could not prickle she could not prickle we could not prickle you could not prickle they could not prickle	I could not be prickling you could not be prickling she could not be prickling we could not be prickling you could not be prickling they could not be prickling
Perfect	V-ing perfect
I could not have prickled you could not have prickled she could not have prickled we could not have prickled you could not have prickled they could not have prickled	I could not have been prickling you could not have been prickling she could not have been prickling we could not have been prickling you could not have been prickling they could not have been prickling

Interrogative form

Simple form	V-ing form
could I prickle? could you prickle? could she prickle? could we prickle? could you prickle? could they prickle?	could I be prickling? could you be prickling? could she be prickling? could we be prickling? could you be prickling? could they be prickling?
Perfect	V-ing perfect
could I have prickled? could you have prickled? could she have prickled? could we have prickled? could you have prickled? could they have prickled?	could I have been prickling? could you have been prickling? could she have been prickling? could we have been prickling? could you have been prickling? could they have been prickling?

Interro-negative form

Simple form	V-ing form
could I not prickle? could you not prickle? could she not prickle? could we not prickle? could you not prickle? could they not prickle?	could I not be prickling? could you not be prickling? could she not be prickling? could we not be prickling? could you not be prickling? could they not be prickling?
Perfect	V-ing perfect
could I not have prickled? could you not have prickled? could she not have prickled? could we not have prickled? could you not have prickled? could they not have prickled?	could I not have been prickling? could you not have been prickling? could she not have been prickling? could we not have been prickling? could you not have been prickling? could they not have been prickling?