English verb conjugation
CAN PAY

Irregular verb: pay - paid - paid

Affirmation

Simple form	V-ing form
I can pay you can pay he can pay we can pay you can pay they can pay	I can be paying you can be paying he can be paying we can be paying you can be paying they can be paying
Perfect	V-ing perfect
I can have paid you can have paid he can have paid we can have paid you can have paid they can have paid	I can have been paying you can have been paying he can have been paying we can have been paying you can have been paying they can have been paying

Negation

Simple form	V-ing form
I can't pay you can't pay he can't pay we can't pay you can't pay they can't pay	I can't be paying you can't be paying he can't be paying we can't be paying you can't be paying they can't be paying
Perfect	V-ing perfect
I can't have paid you can't have paid he can't have paid we can't have paid you can't have paid they can't have paid	I can't have been paying you can't have been paying he can't have been paying we can't have been paying you can't have been paying they can't have been paying

Interrogative form

Simple form	V-ing form
can I pay? can you pay? can he pay? can we pay? can you pay? can they pay?	can I be paying? can you be paying? can he be paying? can we be paying? can you be paying? can they be paying?
Perfect	V-ing perfect
can I have paid? can you have paid? can he have paid? can we have paid? can you have paid? can they have paid?	can I have been paying? can you have been paying? can he have been paying? can we have been paying? can you have been paying? can they have been paying?

Interro-negative form

Simple form	V-ing form
can't I pay? can't you pay? can't he pay? can't we pay? can't you pay? can't they pay?	can't I be paying? can't you be paying? can't he be paying? can't we be paying? can't you be paying? can't they be paying?
Perfect	V-ing perfect
can't I have paid? can't you have paid? can't he have paid? can't we have paid? can't you have paid? can't they have paid?	can't I have been paying? can't you have been paying? can't he have been paying? can't we have been paying? can't you have been paying? can't they have been paying?