English verb conjugation
COULD WITHDRAW

Irregular verb: withdraw - withdrew - withdrawn

Affirmation

Simple form	V-ing form
I could withdraw you could withdraw he could withdraw we could withdraw you could withdraw they could withdraw	I could be withdrawing you could be withdrawing he could be withdrawing we could be withdrawing you could be withdrawing they could be withdrawing
Perfect	V-ing perfect
I could have withdrawn you could have withdrawn he could have withdrawn we could have withdrawn you could have withdrawn they could have withdrawn	I could have been withdrawing you could have been withdrawing he could have been withdrawing we could have been withdrawing you could have been withdrawing they could have been withdrawing

Negation

Simple form	V-ing form
I couldn't withdraw you couldn't withdraw he couldn't withdraw we couldn't withdraw you couldn't withdraw they couldn't withdraw	I couldn't be withdrawing you couldn't be withdrawing he couldn't be withdrawing we couldn't be withdrawing you couldn't be withdrawing they couldn't be withdrawing
Perfect	V-ing perfect
I couldn't have withdrawn you couldn't have withdrawn he couldn't have withdrawn we couldn't have withdrawn you couldn't have withdrawn they couldn't have withdrawn	I couldn't have been withdrawing you couldn't have been withdrawing he couldn't have been withdrawing we couldn't have been withdrawing you couldn't have been withdrawing they couldn't have been withdrawing

Interrogative form

Simple form	V-ing form
could I withdraw? could you withdraw? could he withdraw? could we withdraw? could you withdraw? could they withdraw?	could I be withdrawing? could you be withdrawing? could he be withdrawing? could we be withdrawing? could you be withdrawing? could they be withdrawing?
Perfect	V-ing perfect
could I have withdrawn? could you have withdrawn? could he have withdrawn? could we have withdrawn? could you have withdrawn? could they have withdrawn?	could I have been withdrawing? could you have been withdrawing? could he have been withdrawing? could we have been withdrawing? could you have been withdrawing? could they have been withdrawing?

Interro-negative form

Simple form	V-ing form
couldn't I withdraw? couldn't you withdraw? couldn't he withdraw? couldn't we withdraw? couldn't you withdraw? couldn't they withdraw?	couldn't I be withdrawing? couldn't you be withdrawing? couldn't he be withdrawing? couldn't we be withdrawing? couldn't you be withdrawing? couldn't they be withdrawing?
Perfect	V-ing perfect
couldn't I have withdrawn? couldn't you have withdrawn? couldn't he have withdrawn? couldn't we have withdrawn? couldn't you have withdrawn? couldn't they have withdrawn?	couldn't I have been withdrawing? couldn't you have been withdrawing? couldn't he have been withdrawing? couldn't we have been withdrawing? couldn't you have been withdrawing? couldn't they have been withdrawing?