English verb conjugation
COULD HICCUP

Regular verb: hiccup - hiccupped - hiccupped

Affirmation

Simple form	V-ing form
I could hiccup you could hiccup she could hiccup we could hiccup you could hiccup they could hiccup	I could be hiccupping you could be hiccupping she could be hiccupping we could be hiccupping you could be hiccupping they could be hiccupping
Perfect	V-ing perfect
I could have hiccupped you could have hiccupped she could have hiccupped we could have hiccupped you could have hiccupped they could have hiccupped	I could have been hiccupping you could have been hiccupping she could have been hiccupping we could have been hiccupping you could have been hiccupping they could have been hiccupping

Negation

Simple form	V-ing form
I couldn't hiccup you couldn't hiccup she couldn't hiccup we couldn't hiccup you couldn't hiccup they couldn't hiccup	I couldn't be hiccupping you couldn't be hiccupping she couldn't be hiccupping we couldn't be hiccupping you couldn't be hiccupping they couldn't be hiccupping
Perfect	V-ing perfect
I couldn't have hiccupped you couldn't have hiccupped she couldn't have hiccupped we couldn't have hiccupped you couldn't have hiccupped they couldn't have hiccupped	I couldn't have been hiccupping you couldn't have been hiccupping she couldn't have been hiccupping we couldn't have been hiccupping you couldn't have been hiccupping they couldn't have been hiccupping

Interrogative form

Simple form	V-ing form
could I hiccup? could you hiccup? could she hiccup? could we hiccup? could you hiccup? could they hiccup?	could I be hiccupping? could you be hiccupping? could she be hiccupping? could we be hiccupping? could you be hiccupping? could they be hiccupping?
Perfect	V-ing perfect
could I have hiccupped? could you have hiccupped? could she have hiccupped? could we have hiccupped? could you have hiccupped? could they have hiccupped?	could I have been hiccupping? could you have been hiccupping? could she have been hiccupping? could we have been hiccupping? could you have been hiccupping? could they have been hiccupping?

Interro-negative form

Simple form	V-ing form
couldn't I hiccup? couldn't you hiccup? couldn't she hiccup? couldn't we hiccup? couldn't you hiccup? couldn't they hiccup?	couldn't I be hiccupping? couldn't you be hiccupping? couldn't she be hiccupping? couldn't we be hiccupping? couldn't you be hiccupping? couldn't they be hiccupping?
Perfect	V-ing perfect
couldn't I have hiccupped? couldn't you have hiccupped? couldn't she have hiccupped? couldn't we have hiccupped? couldn't you have hiccupped? couldn't they have hiccupped?	couldn't I have been hiccupping? couldn't you have been hiccupping? couldn't she have been hiccupping? couldn't we have been hiccupping? couldn't you have been hiccupping? couldn't they have been hiccupping?