could pay
Irregular verb: pay - paid- paid

Affirmation 	
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I could pay
you could pay
she could pay
we could pay
you could pay
they could pay 	I could be paying
you could be paying
she could be paying
we could be paying
you could be paying
they could be paying	I could have paid
you could have paid
she could have paid
we could have paid
you could have paid
they could have paid	I could have been paying
you could have been paying
she could have been paying
we could have been paying
you could have been paying
they could have been paying	

Negation 	
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I couldn't pay
you couldn't pay
she couldn't pay
we couldn't pay
you couldn't pay
they couldn't pay 	I couldn't be paying
you couldn't be paying
she couldn't be paying
we couldn't be paying
you couldn't be paying
they couldn't be paying	I couldn't have paid
you couldn't have paid
she couldn't have paid
we couldn't have paid
you couldn't have paid
they couldn't have paid	I couldn't have been paying
you couldn't have been paying
she couldn't have been paying
we couldn't have been paying
you couldn't have been paying
they couldn't have been paying	

Interrogative form 	
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could I pay?
could you pay?
could she pay?
could we pay?
could you pay?
could they pay? 	could I be paying?
could you be paying?
could she be paying?
could we be paying?
could you be paying?
could they be paying? 	could I have paid?
could you have paid?
could she have paid?
could we have paid?
could you have paid?
could they have paid? 	could I have been paying?
could you have been paying?
could she have been paying?
could we have been paying?
could you have been paying?
could they have been paying? 	

Interro-negative form 	
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couldn't I pay?
couldn't you pay?
couldn't she pay?
couldn't we pay?
couldn't you pay?
couldn't they pay? 	couldn't I be paying?
couldn't you be paying?
couldn't she be paying?
couldn't we be paying?
couldn't you be paying?
couldn't they be paying? 	couldn't I have paid?
couldn't you have paid?
couldn't she have paid?
couldn't we have paid?
couldn't you have paid?
couldn't they have paid? 	couldn't I have been paying?
couldn't you have been paying?
couldn't she have been paying?
couldn't we have been paying?
couldn't you have been paying?
couldn't they have been paying?