could panic
Regular verb: panic - paniced- paniced

Affirmation 	
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I could panic
you could panic
he could panic
we could panic
you could panic
they could panic 	I could be panicing
you could be panicing
he could be panicing
we could be panicing
you could be panicing
they could be panicing	I could have paniced
you could have paniced
he could have paniced
we could have paniced
you could have paniced
they could have paniced	I could have been panicing
you could have been panicing
he could have been panicing
we could have been panicing
you could have been panicing
they could have been panicing	

Negation 	
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I couldn't panic
you couldn't panic
he couldn't panic
we couldn't panic
you couldn't panic
they couldn't panic 	I couldn't be panicing
you couldn't be panicing
he couldn't be panicing
we couldn't be panicing
you couldn't be panicing
they couldn't be panicing	I couldn't have paniced
you couldn't have paniced
he couldn't have paniced
we couldn't have paniced
you couldn't have paniced
they couldn't have paniced	I couldn't have been panicing
you couldn't have been panicing
he couldn't have been panicing
we couldn't have been panicing
you couldn't have been panicing
they couldn't have been panicing	

Interrogative form 	
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could I panic?
could you panic?
could he panic?
could we panic?
could you panic?
could they panic? 	could I be panicing?
could you be panicing?
could he be panicing?
could we be panicing?
could you be panicing?
could they be panicing? 	could I have paniced?
could you have paniced?
could he have paniced?
could we have paniced?
could you have paniced?
could they have paniced? 	could I have been panicing?
could you have been panicing?
could he have been panicing?
could we have been panicing?
could you have been panicing?
could they have been panicing? 	

Interro-negative form 	
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couldn't I panic?
couldn't you panic?
couldn't he panic?
couldn't we panic?
couldn't you panic?
couldn't they panic? 	couldn't I be panicing?
couldn't you be panicing?
couldn't he be panicing?
couldn't we be panicing?
couldn't you be panicing?
couldn't they be panicing? 	couldn't I have paniced?
couldn't you have paniced?
couldn't he have paniced?
couldn't we have paniced?
couldn't you have paniced?
couldn't they have paniced? 	couldn't I have been panicing?
couldn't you have been panicing?
couldn't he have been panicing?
couldn't we have been panicing?
couldn't you have been panicing?
couldn't they have been panicing?