English verb conjugation
COULD SIMPER

Regular verb: simper - simpered - simpered

Affirmation

Simple form	V-ing form
I could simper you could simper he could simper we could simper you could simper they could simper	I could be simpering you could be simpering he could be simpering we could be simpering you could be simpering they could be simpering
Perfect	V-ing perfect
I could have simpered you could have simpered he could have simpered we could have simpered you could have simpered they could have simpered	I could have been simpering you could have been simpering he could have been simpering we could have been simpering you could have been simpering they could have been simpering

Negation

Simple form	V-ing form
I couldn't simper you couldn't simper he couldn't simper we couldn't simper you couldn't simper they couldn't simper	I couldn't be simpering you couldn't be simpering he couldn't be simpering we couldn't be simpering you couldn't be simpering they couldn't be simpering
Perfect	V-ing perfect
I couldn't have simpered you couldn't have simpered he couldn't have simpered we couldn't have simpered you couldn't have simpered they couldn't have simpered	I couldn't have been simpering you couldn't have been simpering he couldn't have been simpering we couldn't have been simpering you couldn't have been simpering they couldn't have been simpering

Interrogative form

Simple form	V-ing form
could I simper? could you simper? could he simper? could we simper? could you simper? could they simper?	could I be simpering? could you be simpering? could he be simpering? could we be simpering? could you be simpering? could they be simpering?
Perfect	V-ing perfect
could I have simpered? could you have simpered? could he have simpered? could we have simpered? could you have simpered? could they have simpered?	could I have been simpering? could you have been simpering? could he have been simpering? could we have been simpering? could you have been simpering? could they have been simpering?

Interro-negative form

Simple form	V-ing form
couldn't I simper? couldn't you simper? couldn't he simper? couldn't we simper? couldn't you simper? couldn't they simper?	couldn't I be simpering? couldn't you be simpering? couldn't he be simpering? couldn't we be simpering? couldn't you be simpering? couldn't they be simpering?
Perfect	V-ing perfect
couldn't I have simpered? couldn't you have simpered? couldn't he have simpered? couldn't we have simpered? couldn't you have simpered? couldn't they have simpered?	couldn't I have been simpering? couldn't you have been simpering? couldn't he have been simpering? couldn't we have been simpering? couldn't you have been simpering? couldn't they have been simpering?