English verb conjugation
COULD INSPHERE

Regular verb: insphere - insphered - insphered

Affirmation

Simple form	V-ing form
I could insphere you could insphere she could insphere we could insphere you could insphere they could insphere	I could be insphering you could be insphering she could be insphering we could be insphering you could be insphering they could be insphering
Perfect	V-ing perfect
I could have insphered you could have insphered she could have insphered we could have insphered you could have insphered they could have insphered	I could have been insphering you could have been insphering she could have been insphering we could have been insphering you could have been insphering they could have been insphering

Negation

Simple form	V-ing form
I couldn't insphere you couldn't insphere she couldn't insphere we couldn't insphere you couldn't insphere they couldn't insphere	I couldn't be insphering you couldn't be insphering she couldn't be insphering we couldn't be insphering you couldn't be insphering they couldn't be insphering
Perfect	V-ing perfect
I couldn't have insphered you couldn't have insphered she couldn't have insphered we couldn't have insphered you couldn't have insphered they couldn't have insphered	I couldn't have been insphering you couldn't have been insphering she couldn't have been insphering we couldn't have been insphering you couldn't have been insphering they couldn't have been insphering

Interrogative form

Simple form	V-ing form
could I insphere? could you insphere? could she insphere? could we insphere? could you insphere? could they insphere?	could I be insphering? could you be insphering? could she be insphering? could we be insphering? could you be insphering? could they be insphering?
Perfect	V-ing perfect
could I have insphered? could you have insphered? could she have insphered? could we have insphered? could you have insphered? could they have insphered?	could I have been insphering? could you have been insphering? could she have been insphering? could we have been insphering? could you have been insphering? could they have been insphering?

Interro-negative form

Simple form	V-ing form
couldn't I insphere? couldn't you insphere? couldn't she insphere? couldn't we insphere? couldn't you insphere? couldn't they insphere?	couldn't I be insphering? couldn't you be insphering? couldn't she be insphering? couldn't we be insphering? couldn't you be insphering? couldn't they be insphering?
Perfect	V-ing perfect
couldn't I have insphered? couldn't you have insphered? couldn't she have insphered? couldn't we have insphered? couldn't you have insphered? couldn't they have insphered?	couldn't I have been insphering? couldn't you have been insphering? couldn't she have been insphering? couldn't we have been insphering? couldn't you have been insphering? couldn't they have been insphering?