English verb conjugation
COULD ALLOW

Regular verb: allow - allowed - allowed

Affirmation

Simple form	V-ing form
I could allow you could allow he could allow we could allow you could allow they could allow	I could be allowing you could be allowing he could be allowing we could be allowing you could be allowing they could be allowing
Perfect	V-ing perfect
I could have allowed you could have allowed he could have allowed we could have allowed you could have allowed they could have allowed	I could have been allowing you could have been allowing he could have been allowing we could have been allowing you could have been allowing they could have been allowing

Negation

Simple form	V-ing form
I couldn't allow you couldn't allow he couldn't allow we couldn't allow you couldn't allow they couldn't allow	I couldn't be allowing you couldn't be allowing he couldn't be allowing we couldn't be allowing you couldn't be allowing they couldn't be allowing
Perfect	V-ing perfect
I couldn't have allowed you couldn't have allowed he couldn't have allowed we couldn't have allowed you couldn't have allowed they couldn't have allowed	I couldn't have been allowing you couldn't have been allowing he couldn't have been allowing we couldn't have been allowing you couldn't have been allowing they couldn't have been allowing

Interrogative form

Simple form	V-ing form
could I allow? could you allow? could he allow? could we allow? could you allow? could they allow?	could I be allowing? could you be allowing? could he be allowing? could we be allowing? could you be allowing? could they be allowing?
Perfect	V-ing perfect
could I have allowed? could you have allowed? could he have allowed? could we have allowed? could you have allowed? could they have allowed?	could I have been allowing? could you have been allowing? could he have been allowing? could we have been allowing? could you have been allowing? could they have been allowing?

Interro-negative form

Simple form	V-ing form
couldn't I allow? couldn't you allow? couldn't he allow? couldn't we allow? couldn't you allow? couldn't they allow?	couldn't I be allowing? couldn't you be allowing? couldn't he be allowing? couldn't we be allowing? couldn't you be allowing? couldn't they be allowing?
Perfect	V-ing perfect
couldn't I have allowed? couldn't you have allowed? couldn't he have allowed? couldn't we have allowed? couldn't you have allowed? couldn't they have allowed?	couldn't I have been allowing? couldn't you have been allowing? couldn't he have been allowing? couldn't we have been allowing? couldn't you have been allowing? couldn't they have been allowing?