could deadpan
Regular verb: deadpan - deadpaned- deadpaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deadpan
you could deadpan
she could deadpan
we could deadpan
you could deadpan
they could deadpan 	I could be deadpaning
you could be deadpaning
she could be deadpaning
we could be deadpaning
you could be deadpaning
they could be deadpaning	I could have deadpaned
you could have deadpaned
she could have deadpaned
we could have deadpaned
you could have deadpaned
they could have deadpaned	I could have been deadpaning
you could have been deadpaning
she could have been deadpaning
we could have been deadpaning
you could have been deadpaning
they could have been deadpaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't deadpan
you couldn't deadpan
she couldn't deadpan
we couldn't deadpan
you couldn't deadpan
they couldn't deadpan 	I couldn't be deadpaning
you couldn't be deadpaning
she couldn't be deadpaning
we couldn't be deadpaning
you couldn't be deadpaning
they couldn't be deadpaning	I couldn't have deadpaned
you couldn't have deadpaned
she couldn't have deadpaned
we couldn't have deadpaned
you couldn't have deadpaned
they couldn't have deadpaned	I couldn't have been deadpaning
you couldn't have been deadpaning
she couldn't have been deadpaning
we couldn't have been deadpaning
you couldn't have been deadpaning
they couldn't have been deadpaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I deadpan?
could you deadpan?
could she deadpan?
could we deadpan?
could you deadpan?
could they deadpan? 	could I be deadpaning?
could you be deadpaning?
could she be deadpaning?
could we be deadpaning?
could you be deadpaning?
could they be deadpaning? 	could I have deadpaned?
could you have deadpaned?
could she have deadpaned?
could we have deadpaned?
could you have deadpaned?
could they have deadpaned? 	could I have been deadpaning?
could you have been deadpaning?
could she have been deadpaning?
could we have been deadpaning?
could you have been deadpaning?
could they have been deadpaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I deadpan?
couldn't you deadpan?
couldn't she deadpan?
couldn't we deadpan?
couldn't you deadpan?
couldn't they deadpan? 	couldn't I be deadpaning?
couldn't you be deadpaning?
couldn't she be deadpaning?
couldn't we be deadpaning?
couldn't you be deadpaning?
couldn't they be deadpaning? 	couldn't I have deadpaned?
couldn't you have deadpaned?
couldn't she have deadpaned?
couldn't we have deadpaned?
couldn't you have deadpaned?
couldn't they have deadpaned? 	couldn't I have been deadpaning?
couldn't you have been deadpaning?
couldn't she have been deadpaning?
couldn't we have been deadpaning?
couldn't you have been deadpaning?
couldn't they have been deadpaning?