could pall
Regular verb: pall - palled- palled

Affirmation 	
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I could pall
you could pall
she could pall
we could pall
you could pall
they could pall 	I could be palling
you could be palling
she could be palling
we could be palling
you could be palling
they could be palling	I could have palled
you could have palled
she could have palled
we could have palled
you could have palled
they could have palled	I could have been palling
you could have been palling
she could have been palling
we could have been palling
you could have been palling
they could have been palling	

Negation 	
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I couldn't pall
you couldn't pall
she couldn't pall
we couldn't pall
you couldn't pall
they couldn't pall 	I couldn't be palling
you couldn't be palling
she couldn't be palling
we couldn't be palling
you couldn't be palling
they couldn't be palling	I couldn't have palled
you couldn't have palled
she couldn't have palled
we couldn't have palled
you couldn't have palled
they couldn't have palled	I couldn't have been palling
you couldn't have been palling
she couldn't have been palling
we couldn't have been palling
you couldn't have been palling
they couldn't have been palling	

Interrogative form 	
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could I pall?
could you pall?
could she pall?
could we pall?
could you pall?
could they pall? 	could I be palling?
could you be palling?
could she be palling?
could we be palling?
could you be palling?
could they be palling? 	could I have palled?
could you have palled?
could she have palled?
could we have palled?
could you have palled?
could they have palled? 	could I have been palling?
could you have been palling?
could she have been palling?
could we have been palling?
could you have been palling?
could they have been palling? 	

Interro-negative form 	
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couldn't I pall?
couldn't you pall?
couldn't she pall?
couldn't we pall?
couldn't you pall?
couldn't they pall? 	couldn't I be palling?
couldn't you be palling?
couldn't she be palling?
couldn't we be palling?
couldn't you be palling?
couldn't they be palling? 	couldn't I have palled?
couldn't you have palled?
couldn't she have palled?
couldn't we have palled?
couldn't you have palled?
couldn't they have palled? 	couldn't I have been palling?
couldn't you have been palling?
couldn't she have been palling?
couldn't we have been palling?
couldn't you have been palling?
couldn't they have been palling?