could snub
Regular verb: snub - snubbed- snubbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could snub
you could snub
she could snub
we could snub
you could snub
they could snub 	I could be snubbing
you could be snubbing
she could be snubbing
we could be snubbing
you could be snubbing
they could be snubbing	I could have snubbed
you could have snubbed
she could have snubbed
we could have snubbed
you could have snubbed
they could have snubbed	I could have been snubbing
you could have been snubbing
she could have been snubbing
we could have been snubbing
you could have been snubbing
they could have been snubbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't snub
you couldn't snub
she couldn't snub
we couldn't snub
you couldn't snub
they couldn't snub 	I couldn't be snubbing
you couldn't be snubbing
she couldn't be snubbing
we couldn't be snubbing
you couldn't be snubbing
they couldn't be snubbing	I couldn't have snubbed
you couldn't have snubbed
she couldn't have snubbed
we couldn't have snubbed
you couldn't have snubbed
they couldn't have snubbed	I couldn't have been snubbing
you couldn't have been snubbing
she couldn't have been snubbing
we couldn't have been snubbing
you couldn't have been snubbing
they couldn't have been snubbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I snub?
could you snub?
could she snub?
could we snub?
could you snub?
could they snub? 	could I be snubbing?
could you be snubbing?
could she be snubbing?
could we be snubbing?
could you be snubbing?
could they be snubbing? 	could I have snubbed?
could you have snubbed?
could she have snubbed?
could we have snubbed?
could you have snubbed?
could they have snubbed? 	could I have been snubbing?
could you have been snubbing?
could she have been snubbing?
could we have been snubbing?
could you have been snubbing?
could they have been snubbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I snub?
couldn't you snub?
couldn't she snub?
couldn't we snub?
couldn't you snub?
couldn't they snub? 	couldn't I be snubbing?
couldn't you be snubbing?
couldn't she be snubbing?
couldn't we be snubbing?
couldn't you be snubbing?
couldn't they be snubbing? 	couldn't I have snubbed?
couldn't you have snubbed?
couldn't she have snubbed?
couldn't we have snubbed?
couldn't you have snubbed?
couldn't they have snubbed? 	couldn't I have been snubbing?
couldn't you have been snubbing?
couldn't she have been snubbing?
couldn't we have been snubbing?
couldn't you have been snubbing?
couldn't they have been snubbing?