could molt
Regular verb: molt - molted- molted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could molt
you could molt
he could molt
we could molt
you could molt
they could molt 	I could be molting
you could be molting
he could be molting
we could be molting
you could be molting
they could be molting	I could have molted
you could have molted
he could have molted
we could have molted
you could have molted
they could have molted	I could have been molting
you could have been molting
he could have been molting
we could have been molting
you could have been molting
they could have been molting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't molt
you couldn't molt
he couldn't molt
we couldn't molt
you couldn't molt
they couldn't molt 	I couldn't be molting
you couldn't be molting
he couldn't be molting
we couldn't be molting
you couldn't be molting
they couldn't be molting	I couldn't have molted
you couldn't have molted
he couldn't have molted
we couldn't have molted
you couldn't have molted
they couldn't have molted	I couldn't have been molting
you couldn't have been molting
he couldn't have been molting
we couldn't have been molting
you couldn't have been molting
they couldn't have been molting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I molt?
could you molt?
could he molt?
could we molt?
could you molt?
could they molt? 	could I be molting?
could you be molting?
could he be molting?
could we be molting?
could you be molting?
could they be molting? 	could I have molted?
could you have molted?
could he have molted?
could we have molted?
could you have molted?
could they have molted? 	could I have been molting?
could you have been molting?
could he have been molting?
could we have been molting?
could you have been molting?
could they have been molting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I molt?
couldn't you molt?
couldn't he molt?
couldn't we molt?
couldn't you molt?
couldn't they molt? 	couldn't I be molting?
couldn't you be molting?
couldn't he be molting?
couldn't we be molting?
couldn't you be molting?
couldn't they be molting? 	couldn't I have molted?
couldn't you have molted?
couldn't he have molted?
couldn't we have molted?
couldn't you have molted?
couldn't they have molted? 	couldn't I have been molting?
couldn't you have been molting?
couldn't he have been molting?
couldn't we have been molting?
couldn't you have been molting?
couldn't they have been molting?