could light
Irregular verb: light - lit- lit

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could light
you could light
she could light
we could light
you could light
they could light 	I could be lighting
you could be lighting
she could be lighting
we could be lighting
you could be lighting
they could be lighting	I could have lit
you could have lit
she could have lit
we could have lit
you could have lit
they could have lit	I could have been lighting
you could have been lighting
she could have been lighting
we could have been lighting
you could have been lighting
they could have been lighting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not light
you could not light
she could not light
we could not light
you could not light
they could not light 	I could not be lighting
you could not be lighting
she could not be lighting
we could not be lighting
you could not be lighting
they could not be lighting	I could not have lit
you could not have lit
she could not have lit
we could not have lit
you could not have lit
they could not have lit	I could not have been lighting
you could not have been lighting
she could not have been lighting
we could not have been lighting
you could not have been lighting
they could not have been lighting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I light?
could you light?
could she light?
could we light?
could you light?
could they light? 	could I be lighting?
could you be lighting?
could she be lighting?
could we be lighting?
could you be lighting?
could they be lighting? 	could I have lit?
could you have lit?
could she have lit?
could we have lit?
could you have lit?
could they have lit? 	could I have been lighting?
could you have been lighting?
could she have been lighting?
could we have been lighting?
could you have been lighting?
could they have been lighting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not light?
could you not light?
could she not light?
could we not light?
could you not light?
could they not light? 	could I not be lighting?
could you not be lighting?
could she not be lighting?
could we not be lighting?
could you not be lighting?
could they not be lighting? 	could I not have lit?
could you not have lit?
could she not have lit?
could we not have lit?
could you not have lit?
could they not have lit? 	could I not have been lighting?
could you not have been lighting?
could she not have been lighting?
could we not have been lighting?
could you not have been lighting?
could they not have been lighting?