English verb conjugation
COULD DISALLOW

Regular verb: disallow - disallowed - disallowed

Affirmation

Simple form	V-ing form
I could disallow you could disallow he could disallow we could disallow you could disallow they could disallow	I could be disallowing you could be disallowing he could be disallowing we could be disallowing you could be disallowing they could be disallowing
Perfect	V-ing perfect
I could have disallowed you could have disallowed he could have disallowed we could have disallowed you could have disallowed they could have disallowed	I could have been disallowing you could have been disallowing he could have been disallowing we could have been disallowing you could have been disallowing they could have been disallowing

Negation

Simple form	V-ing form
I couldn't disallow you couldn't disallow he couldn't disallow we couldn't disallow you couldn't disallow they couldn't disallow	I couldn't be disallowing you couldn't be disallowing he couldn't be disallowing we couldn't be disallowing you couldn't be disallowing they couldn't be disallowing
Perfect	V-ing perfect
I couldn't have disallowed you couldn't have disallowed he couldn't have disallowed we couldn't have disallowed you couldn't have disallowed they couldn't have disallowed	I couldn't have been disallowing you couldn't have been disallowing he couldn't have been disallowing we couldn't have been disallowing you couldn't have been disallowing they couldn't have been disallowing

Interrogative form

Simple form	V-ing form
could I disallow? could you disallow? could he disallow? could we disallow? could you disallow? could they disallow?	could I be disallowing? could you be disallowing? could he be disallowing? could we be disallowing? could you be disallowing? could they be disallowing?
Perfect	V-ing perfect
could I have disallowed? could you have disallowed? could he have disallowed? could we have disallowed? could you have disallowed? could they have disallowed?	could I have been disallowing? could you have been disallowing? could he have been disallowing? could we have been disallowing? could you have been disallowing? could they have been disallowing?

Interro-negative form

Simple form	V-ing form
couldn't I disallow? couldn't you disallow? couldn't he disallow? couldn't we disallow? couldn't you disallow? couldn't they disallow?	couldn't I be disallowing? couldn't you be disallowing? couldn't he be disallowing? couldn't we be disallowing? couldn't you be disallowing? couldn't they be disallowing?
Perfect	V-ing perfect
couldn't I have disallowed? couldn't you have disallowed? couldn't he have disallowed? couldn't we have disallowed? couldn't you have disallowed? couldn't they have disallowed?	couldn't I have been disallowing? couldn't you have been disallowing? couldn't he have been disallowing? couldn't we have been disallowing? couldn't you have been disallowing? couldn't they have been disallowing?