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 can't picnic you can't picnic he can't picnic we can't picnic you can't picnic they can't picnic	I can't be picnicing you can't be picnicing he can't be picnicing we can't be picnicing you can't be picnicing they can't be picnicing
Perfect	V-ing perfect
I can't have picniced you can't have picniced he can't have picniced we can't have picniced you can't have picniced they can't have picniced	I can't have been picnicing you can't have been picnicing he can't have been picnicing we can't have been picnicing you can't have been picnicing they can't 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't I picnic? can't you picnic? can't he picnic? can't we picnic? can't you picnic? can't they picnic?	can't I be picnicing? can't you be picnicing? can't he be picnicing? can't we be picnicing? can't you be picnicing? can't they be picnicing?
Perfect	V-ing perfect
can't I have picniced? can't you have picniced? can't he have picniced? can't we have picniced? can't you have picniced? can't they have picniced?	can't I have been picnicing? can't you have been picnicing? can't he have been picnicing? can't we have been picnicing? can't you have been picnicing? can't they have been picnicing?