English verb conjugation
COULD SUCKLE

Regular verb: suckle - suckled - suckled

Affirmation

Simple form	V-ing form
I could suckle you could suckle he could suckle we could suckle you could suckle they could suckle	I could be suckling you could be suckling he 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 he 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 he 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 could not suckle you could not suckle he could not suckle we could not suckle you could not suckle they could not suckle	I could not be suckling you could not be suckling he could not be suckling we could not be suckling you could not be suckling they could not be suckling
Perfect	V-ing perfect
I could not have suckled you could not have suckled he could not have suckled we could not have suckled you could not have suckled they could not have suckled	I could not have been suckling you could not have been suckling he could not have been suckling we could not have been suckling you could not have been suckling they could not have been suckling

Interrogative form

Simple form	V-ing form
could I suckle? could you suckle? could he suckle? could we suckle? could you suckle? could they suckle?	could I be suckling? could you be suckling? could he 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 he 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 he 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
could I not suckle? could you not suckle? could he not suckle? could we not suckle? could you not suckle? could they not suckle?	could I not be suckling? could you not be suckling? could he not be suckling? could we not be suckling? could you not be suckling? could they not be suckling?
Perfect	V-ing perfect
could I not have suckled? could you not have suckled? could he not have suckled? could we not have suckled? could you not have suckled? could they not have suckled?	could I not have been suckling? could you not have been suckling? could he not have been suckling? could we not have been suckling? could you not have been suckling? could they not have been suckling?