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 couldn't stickle you couldn't stickle he 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 he 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 he 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 he 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 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
couldn't I stickle? couldn't you stickle? couldn't he 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 he 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 he 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 he have been stickling? couldn't we have been stickling? couldn't you have been stickling? couldn't they have been stickling?