English verb conjugation
COULD PICNIC

Regular verb: picnic - picniced - picniced

Affirmation

Simple form	V-ing form
I could picnic you could picnic he could picnic we could picnic you could picnic they could picnic	I could be picnicing you could be picnicing he could be picnicing we could be picnicing you could be picnicing they could be picnicing
Perfect	V-ing perfect
I could have picniced you could have picniced he could have picniced we could have picniced you could have picniced they could have picniced	I could have been picnicing you could have been picnicing he could have been picnicing we could have been picnicing you could have been picnicing they could have been picnicing

Negation

Simple form	V-ing form
I could not picnic you could not picnic he could not picnic we could not picnic you could not picnic they could not picnic	I could not be picnicing you could not be picnicing he could not be picnicing we could not be picnicing you could not be picnicing they could not be picnicing
Perfect	V-ing perfect
I could not have picniced you could not have picniced he could not have picniced we could not have picniced you could not have picniced they could not have picniced	I could not have been picnicing you could not have been picnicing he could not have been picnicing we could not have been picnicing you could not have been picnicing they could not have been picnicing

Interrogative form

Simple form	V-ing form
could I picnic? could you picnic? could he picnic? could we picnic? could you picnic? could they picnic?	could I be picnicing? could you be picnicing? could he be picnicing? could we be picnicing? could you be picnicing? could they be picnicing?
Perfect	V-ing perfect
could I have picniced? could you have picniced? could he have picniced? could we have picniced? could you have picniced? could they have picniced?	could I have been picnicing? could you have been picnicing? could he have been picnicing? could we have been picnicing? could you have been picnicing? could they have been picnicing?

Interro-negative form

Simple form	V-ing form
could I not picnic? could you not picnic? could he not picnic? could we not picnic? could you not picnic? could they not picnic?	could I not be picnicing? could you not be picnicing? could he not be picnicing? could we not be picnicing? could you not be picnicing? could they not be picnicing?
Perfect	V-ing perfect
could I not have picniced? could you not have picniced? could he not have picniced? could we not have picniced? could you not have picniced? could they not have picniced?	could I not have been picnicing? could you not have been picnicing? could he not have been picnicing? could we not have been picnicing? could you not have been picnicing? could they not have been picnicing?