English verb conjugation
COULD THROTTLE

Regular verb: throttle - throttled - throttled

Affirmation

Simple form	V-ing form
I could throttle you could throttle she could throttle we could throttle you could throttle they could throttle	I could be throttling you could be throttling she could be throttling we could be throttling you could be throttling they could be throttling
Perfect	V-ing perfect
I could have throttled you could have throttled she could have throttled we could have throttled you could have throttled they could have throttled	I could have been throttling you could have been throttling she could have been throttling we could have been throttling you could have been throttling they could have been throttling

Negation

Simple form	V-ing form
I couldn't throttle you couldn't throttle she couldn't throttle we couldn't throttle you couldn't throttle they couldn't throttle	I couldn't be throttling you couldn't be throttling she couldn't be throttling we couldn't be throttling you couldn't be throttling they couldn't be throttling
Perfect	V-ing perfect
I couldn't have throttled you couldn't have throttled she couldn't have throttled we couldn't have throttled you couldn't have throttled they couldn't have throttled	I couldn't have been throttling you couldn't have been throttling she couldn't have been throttling we couldn't have been throttling you couldn't have been throttling they couldn't have been throttling

Interrogative form

Simple form	V-ing form
could I throttle? could you throttle? could she throttle? could we throttle? could you throttle? could they throttle?	could I be throttling? could you be throttling? could she be throttling? could we be throttling? could you be throttling? could they be throttling?
Perfect	V-ing perfect
could I have throttled? could you have throttled? could she have throttled? could we have throttled? could you have throttled? could they have throttled?	could I have been throttling? could you have been throttling? could she have been throttling? could we have been throttling? could you have been throttling? could they have been throttling?

Interro-negative form

Simple form	V-ing form
couldn't I throttle? couldn't you throttle? couldn't she throttle? couldn't we throttle? couldn't you throttle? couldn't they throttle?	couldn't I be throttling? couldn't you be throttling? couldn't she be throttling? couldn't we be throttling? couldn't you be throttling? couldn't they be throttling?
Perfect	V-ing perfect
couldn't I have throttled? couldn't you have throttled? couldn't she have throttled? couldn't we have throttled? couldn't you have throttled? couldn't they have throttled?	couldn't I have been throttling? couldn't you have been throttling? couldn't she have been throttling? couldn't we have been throttling? couldn't you have been throttling? couldn't they have been throttling?