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 could not simper you could not simper he could not simper we could not simper you could not simper they could not simper	I could not be simpering you could not be simpering he could not be simpering we could not be simpering you could not be simpering they could not be simpering
Perfect	V-ing perfect
I could not have simpered you could not have simpered he could not have simpered we could not have simpered you could not have simpered they could not have simpered	I could not have been simpering you could not have been simpering he could not have been simpering we could not have been simpering you could not have been simpering they could not 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
could I not simper? could you not simper? could he not simper? could we not simper? could you not simper? could they not simper?	could I not be simpering? could you not be simpering? could he not be simpering? could we not be simpering? could you not be simpering? could they not be simpering?
Perfect	V-ing perfect
could I not have simpered? could you not have simpered? could he not have simpered? could we not have simpered? could you not have simpered? could they not have simpered?	could I not have been simpering? could you not have been simpering? could he not have been simpering? could we not have been simpering? could you not have been simpering? could they not have been simpering?