English verb conjugation
CAN PATTER

Regular verb: patter - pattered - pattered

Affirmation

Simple form	V-ing form
I can patter you can patter she can patter we can patter you can patter they can patter	I can be pattering you can be pattering she can be pattering we can be pattering you can be pattering they can be pattering
Perfect	V-ing perfect
I can have pattered you can have pattered she can have pattered we can have pattered you can have pattered they can have pattered	I can have been pattering you can have been pattering she can have been pattering we can have been pattering you can have been pattering they can have been pattering

Negation

Simple form	V-ing form
I cannot patter you cannot patter she cannot patter we cannot patter you cannot patter they cannot patter	I cannot be pattering you cannot be pattering she cannot be pattering we cannot be pattering you cannot be pattering they cannot be pattering
Perfect	V-ing perfect
I cannot have pattered you cannot have pattered she cannot have pattered we cannot have pattered you cannot have pattered they cannot have pattered	I cannot have been pattering you cannot have been pattering she cannot have been pattering we cannot have been pattering you cannot have been pattering they cannot have been pattering

Interrogative form

Simple form	V-ing form
can I patter? can you patter? can she patter? can we patter? can you patter? can they patter?	can I be pattering? can you be pattering? can she be pattering? can we be pattering? can you be pattering? can they be pattering?
Perfect	V-ing perfect
can I have pattered? can you have pattered? can she have pattered? can we have pattered? can you have pattered? can they have pattered?	can I have been pattering? can you have been pattering? can she have been pattering? can we have been pattering? can you have been pattering? can they have been pattering?

Interro-negative form

Simple form	V-ing form
can I not patter? can you not patter? can she not patter? can we not patter? can you not patter? can they not patter?	can I not be pattering? can you not be pattering? can she not be pattering? can we not be pattering? can you not be pattering? can they not be pattering?
Perfect	V-ing perfect
can I not have pattered? can you not have pattered? can she not have pattered? can we not have pattered? can you not have pattered? can they not have pattered?	can I not have been pattering? can you not have been pattering? can she not have been pattering? can we not have been pattering? can you not have been pattering? can they not have been pattering?