English verb conjugation
COULD SUCKLE

Regular verb: suckle - suckled - suckled

Affirmation

Simple form	V-ing form
I could suckle you could suckle she could suckle we could suckle you could suckle they could suckle	I could be suckling you could be suckling she could be suckling we could be suckling you could be suckling they could be suckling
Perfect	V-ing perfect
I could have suckled you could have suckled she could have suckled we could have suckled you could have suckled they could have suckled	I could have been suckling you could have been suckling she could have been suckling we could have been suckling you could have been suckling they could have been suckling

Negation

Simple form	V-ing form
I couldn't suckle you couldn't suckle she couldn't suckle we couldn't suckle you couldn't suckle they couldn't suckle	I couldn't be suckling you couldn't be suckling she couldn't be suckling we couldn't be suckling you couldn't be suckling they couldn't be suckling
Perfect	V-ing perfect
I couldn't have suckled you couldn't have suckled she couldn't have suckled we couldn't have suckled you couldn't have suckled they couldn't have suckled	I couldn't have been suckling you couldn't have been suckling she couldn't have been suckling we couldn't have been suckling you couldn't have been suckling they couldn't have been suckling

Interrogative form

Simple form	V-ing form
could I suckle? could you suckle? could she suckle? could we suckle? could you suckle? could they suckle?	could I be suckling? could you be suckling? could she be suckling? could we be suckling? could you be suckling? could they be suckling?
Perfect	V-ing perfect
could I have suckled? could you have suckled? could she have suckled? could we have suckled? could you have suckled? could they have suckled?	could I have been suckling? could you have been suckling? could she have been suckling? could we have been suckling? could you have been suckling? could they have been suckling?

Interro-negative form

Simple form	V-ing form
couldn't I suckle? couldn't you suckle? couldn't she suckle? couldn't we suckle? couldn't you suckle? couldn't they suckle?	couldn't I be suckling? couldn't you be suckling? couldn't she be suckling? couldn't we be suckling? couldn't you be suckling? couldn't they be suckling?
Perfect	V-ing perfect
couldn't I have suckled? couldn't you have suckled? couldn't she have suckled? couldn't we have suckled? couldn't you have suckled? couldn't they have suckled?	couldn't I have been suckling? couldn't you have been suckling? couldn't she have been suckling? couldn't we have been suckling? couldn't you have been suckling? couldn't they have been suckling?