could squib
Regular verb: squib - squibed- squibed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could squib
you could squib
she could squib
we could squib
you could squib
they could squib 	I could be squibing
you could be squibing
she could be squibing
we could be squibing
you could be squibing
they could be squibing	I could have squibed
you could have squibed
she could have squibed
we could have squibed
you could have squibed
they could have squibed	I could have been squibing
you could have been squibing
she could have been squibing
we could have been squibing
you could have been squibing
they could have been squibing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't squib
you couldn't squib
she couldn't squib
we couldn't squib
you couldn't squib
they couldn't squib 	I couldn't be squibing
you couldn't be squibing
she couldn't be squibing
we couldn't be squibing
you couldn't be squibing
they couldn't be squibing	I couldn't have squibed
you couldn't have squibed
she couldn't have squibed
we couldn't have squibed
you couldn't have squibed
they couldn't have squibed	I couldn't have been squibing
you couldn't have been squibing
she couldn't have been squibing
we couldn't have been squibing
you couldn't have been squibing
they couldn't have been squibing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I squib?
could you squib?
could she squib?
could we squib?
could you squib?
could they squib? 	could I be squibing?
could you be squibing?
could she be squibing?
could we be squibing?
could you be squibing?
could they be squibing? 	could I have squibed?
could you have squibed?
could she have squibed?
could we have squibed?
could you have squibed?
could they have squibed? 	could I have been squibing?
could you have been squibing?
could she have been squibing?
could we have been squibing?
could you have been squibing?
could they have been squibing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I squib?
couldn't you squib?
couldn't she squib?
couldn't we squib?
couldn't you squib?
couldn't they squib? 	couldn't I be squibing?
couldn't you be squibing?
couldn't she be squibing?
couldn't we be squibing?
couldn't you be squibing?
couldn't they be squibing? 	couldn't I have squibed?
couldn't you have squibed?
couldn't she have squibed?
couldn't we have squibed?
couldn't you have squibed?
couldn't they have squibed? 	couldn't I have been squibing?
couldn't you have been squibing?
couldn't she have been squibing?
couldn't we have been squibing?
couldn't you have been squibing?
couldn't they have been squibing?