English verb conjugation
COULD SNUB

Regular verb: snub - snubbed - snubbed

Affirmation

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