English verb conjugation
COULD REFORM

Regular verb: reform - reformed - reformed

Affirmation

Simple form	V-ing form
I could reform you could reform she could reform we could reform you could reform they could reform	I could be reforming you could be reforming she could be reforming we could be reforming you could be reforming they could be reforming
Perfect	V-ing perfect
I could have reformed you could have reformed she could have reformed we could have reformed you could have reformed they could have reformed	I could have been reforming you could have been reforming she could have been reforming we could have been reforming you could have been reforming they could have been reforming

Negation

Simple form	V-ing form
I couldn't reform you couldn't reform she couldn't reform we couldn't reform you couldn't reform they couldn't reform	I couldn't be reforming you couldn't be reforming she couldn't be reforming we couldn't be reforming you couldn't be reforming they couldn't be reforming
Perfect	V-ing perfect
I couldn't have reformed you couldn't have reformed she couldn't have reformed we couldn't have reformed you couldn't have reformed they couldn't have reformed	I couldn't have been reforming you couldn't have been reforming she couldn't have been reforming we couldn't have been reforming you couldn't have been reforming they couldn't have been reforming

Interrogative form

Simple form	V-ing form
could I reform? could you reform? could she reform? could we reform? could you reform? could they reform?	could I be reforming? could you be reforming? could she be reforming? could we be reforming? could you be reforming? could they be reforming?
Perfect	V-ing perfect
could I have reformed? could you have reformed? could she have reformed? could we have reformed? could you have reformed? could they have reformed?	could I have been reforming? could you have been reforming? could she have been reforming? could we have been reforming? could you have been reforming? could they have been reforming?

Interro-negative form

Simple form	V-ing form
couldn't I reform? couldn't you reform? couldn't she reform? couldn't we reform? couldn't you reform? couldn't they reform?	couldn't I be reforming? couldn't you be reforming? couldn't she be reforming? couldn't we be reforming? couldn't you be reforming? couldn't they be reforming?
Perfect	V-ing perfect
couldn't I have reformed? couldn't you have reformed? couldn't she have reformed? couldn't we have reformed? couldn't you have reformed? couldn't they have reformed?	couldn't I have been reforming? couldn't you have been reforming? couldn't she have been reforming? couldn't we have been reforming? couldn't you have been reforming? couldn't they have been reforming?