English verb conjugation
COULD STICKLE

Regular verb: stickle - stickled - stickled

Affirmation

Simple form	V-ing form
I could stickle you could stickle she could stickle we could stickle you could stickle they could stickle	I could be stickling you could be stickling she 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 she 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 she 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 couldn't stickle you couldn't stickle she couldn't stickle we couldn't stickle you couldn't stickle they couldn't stickle	I couldn't be stickling you couldn't be stickling she couldn't be stickling we couldn't be stickling you couldn't be stickling they couldn't be stickling
Perfect	V-ing perfect
I couldn't have stickled you couldn't have stickled she couldn't have stickled we couldn't have stickled you couldn't have stickled they couldn't have stickled	I couldn't have been stickling you couldn't have been stickling she couldn't have been stickling we couldn't have been stickling you couldn't have been stickling they couldn't have been stickling

Interrogative form

Simple form	V-ing form
could I stickle? could you stickle? could she stickle? could we stickle? could you stickle? could they stickle?	could I be stickling? could you be stickling? could she 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 she 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 she 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
couldn't I stickle? couldn't you stickle? couldn't she stickle? couldn't we stickle? couldn't you stickle? couldn't they stickle?	couldn't I be stickling? couldn't you be stickling? couldn't she be stickling? couldn't we be stickling? couldn't you be stickling? couldn't they be stickling?
Perfect	V-ing perfect
couldn't I have stickled? couldn't you have stickled? couldn't she have stickled? couldn't we have stickled? couldn't you have stickled? couldn't they have stickled?	couldn't I have been stickling? couldn't you have been stickling? couldn't she have been stickling? couldn't we have been stickling? couldn't you have been stickling? couldn't they have been stickling?