English verb conjugation
COULD STICKLE

Regular verb: stickle - stickled - stickled

Affirmation

Simple form	V-ing form
I could stickle you could stickle he could stickle we could stickle you could stickle they could stickle	I could be stickling you could be stickling he could be stickling we could be stickling you could be stickling they could be stickling
Perfect	V-ing perfect
I could have stickled you could have stickled he could have stickled we could have stickled you could have stickled they could have stickled	I could have been stickling you could have been stickling he could have been stickling we could have been stickling you could have been stickling they could have been stickling

Negation

Simple form	V-ing form
I could not stickle you could not stickle he could not stickle we could not stickle you could not stickle they could not stickle	I could not be stickling you could not be stickling he could not be stickling we could not be stickling you could not be stickling they could not be stickling
Perfect	V-ing perfect
I could not have stickled you could not have stickled he could not have stickled we could not have stickled you could not have stickled they could not have stickled	I could not have been stickling you could not have been stickling he could not have been stickling we could not have been stickling you could not have been stickling they could not have been stickling

Interrogative form

Simple form	V-ing form
could I stickle? could you stickle? could he stickle? could we stickle? could you stickle? could they stickle?	could I be stickling? could you be stickling? could he be stickling? could we be stickling? could you be stickling? could they be stickling?
Perfect	V-ing perfect
could I have stickled? could you have stickled? could he have stickled? could we have stickled? could you have stickled? could they have stickled?	could I have been stickling? could you have been stickling? could he have been stickling? could we have been stickling? could you have been stickling? could they have been stickling?

Interro-negative form

Simple form	V-ing form
could I not stickle? could you not stickle? could he not stickle? could we not stickle? could you not stickle? could they not stickle?	could I not be stickling? could you not be stickling? could he not be stickling? could we not be stickling? could you not be stickling? could they not be stickling?
Perfect	V-ing perfect
could I not have stickled? could you not have stickled? could he not have stickled? could we not have stickled? could you not have stickled? could they not have stickled?	could I not have been stickling? could you not have been stickling? could he not have been stickling? could we not have been stickling? could you not have been stickling? could they not have been stickling?