English verb conjugation
CAN PICNIC

Regular verb: picnic - picniced - picniced

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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