English verb conjugation
CAN PATTER

Regular verb: patter - pattered - pattered

Affirmation

Simple form	V-ing form
I can patter you can patter he can patter we can patter you can patter they can patter	I can be pattering you can be pattering he 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 he 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 he 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 can't patter you can't patter he can't patter we can't patter you can't patter they can't patter	I can't be pattering you can't be pattering he can't be pattering we can't be pattering you can't be pattering they can't be pattering
Perfect	V-ing perfect
I can't have pattered you can't have pattered he can't have pattered we can't have pattered you can't have pattered they can't have pattered	I can't have been pattering you can't have been pattering he can't have been pattering we can't have been pattering you can't have been pattering they can't have been pattering

Interrogative form

Simple form	V-ing form
can I patter? can you patter? can he patter? can we patter? can you patter? can they patter?	can I be pattering? can you be pattering? can he 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 he 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 he 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't I patter? can't you patter? can't he patter? can't we patter? can't you patter? can't they patter?	can't I be pattering? can't you be pattering? can't he be pattering? can't we be pattering? can't you be pattering? can't they be pattering?
Perfect	V-ing perfect
can't I have pattered? can't you have pattered? can't he have pattered? can't we have pattered? can't you have pattered? can't they have pattered?	can't I have been pattering? can't you have been pattering? can't he have been pattering? can't we have been pattering? can't you have been pattering? can't they have been pattering?