English verb conjugation
COULD CHUCKLE

Regular verb: chuckle - chuckled - chuckled

Affirmation

Simple form	V-ing form
I could chuckle you could chuckle she could chuckle we could chuckle you could chuckle they could chuckle	I could be chuckling you could be chuckling she could be chuckling we could be chuckling you could be chuckling they could be chuckling
Perfect	V-ing perfect
I could have chuckled you could have chuckled she could have chuckled we could have chuckled you could have chuckled they could have chuckled	I could have been chuckling you could have been chuckling she could have been chuckling we could have been chuckling you could have been chuckling they could have been chuckling

Negation

Simple form	V-ing form
I couldn't chuckle you couldn't chuckle she couldn't chuckle we couldn't chuckle you couldn't chuckle they couldn't chuckle	I couldn't be chuckling you couldn't be chuckling she couldn't be chuckling we couldn't be chuckling you couldn't be chuckling they couldn't be chuckling
Perfect	V-ing perfect
I couldn't have chuckled you couldn't have chuckled she couldn't have chuckled we couldn't have chuckled you couldn't have chuckled they couldn't have chuckled	I couldn't have been chuckling you couldn't have been chuckling she couldn't have been chuckling we couldn't have been chuckling you couldn't have been chuckling they couldn't have been chuckling

Interrogative form

Simple form	V-ing form
could I chuckle? could you chuckle? could she chuckle? could we chuckle? could you chuckle? could they chuckle?	could I be chuckling? could you be chuckling? could she be chuckling? could we be chuckling? could you be chuckling? could they be chuckling?
Perfect	V-ing perfect
could I have chuckled? could you have chuckled? could she have chuckled? could we have chuckled? could you have chuckled? could they have chuckled?	could I have been chuckling? could you have been chuckling? could she have been chuckling? could we have been chuckling? could you have been chuckling? could they have been chuckling?

Interro-negative form

Simple form	V-ing form
couldn't I chuckle? couldn't you chuckle? couldn't she chuckle? couldn't we chuckle? couldn't you chuckle? couldn't they chuckle?	couldn't I be chuckling? couldn't you be chuckling? couldn't she be chuckling? couldn't we be chuckling? couldn't you be chuckling? couldn't they be chuckling?
Perfect	V-ing perfect
couldn't I have chuckled? couldn't you have chuckled? couldn't she have chuckled? couldn't we have chuckled? couldn't you have chuckled? couldn't they have chuckled?	couldn't I have been chuckling? couldn't you have been chuckling? couldn't she have been chuckling? couldn't we have been chuckling? couldn't you have been chuckling? couldn't they have been chuckling?