English verb conjugation
COULD UNDRESS

Regular verb: undress - undressed - undressed

Affirmation

Simple form	V-ing form
I could undress you could undress she could undress we could undress you could undress they could undress	I could be undressing you could be undressing she could be undressing we could be undressing you could be undressing they could be undressing
Perfect	V-ing perfect
I could have undressed you could have undressed she could have undressed we could have undressed you could have undressed they could have undressed	I could have been undressing you could have been undressing she could have been undressing we could have been undressing you could have been undressing they could have been undressing

Negation

Simple form	V-ing form
I could not undress you could not undress she could not undress we could not undress you could not undress they could not undress	I could not be undressing you could not be undressing she could not be undressing we could not be undressing you could not be undressing they could not be undressing
Perfect	V-ing perfect
I could not have undressed you could not have undressed she could not have undressed we could not have undressed you could not have undressed they could not have undressed	I could not have been undressing you could not have been undressing she could not have been undressing we could not have been undressing you could not have been undressing they could not have been undressing

Interrogative form

Simple form	V-ing form
could I undress? could you undress? could she undress? could we undress? could you undress? could they undress?	could I be undressing? could you be undressing? could she be undressing? could we be undressing? could you be undressing? could they be undressing?
Perfect	V-ing perfect
could I have undressed? could you have undressed? could she have undressed? could we have undressed? could you have undressed? could they have undressed?	could I have been undressing? could you have been undressing? could she have been undressing? could we have been undressing? could you have been undressing? could they have been undressing?

Interro-negative form

Simple form	V-ing form
could I not undress? could you not undress? could she not undress? could we not undress? could you not undress? could they not undress?	could I not be undressing? could you not be undressing? could she not be undressing? could we not be undressing? could you not be undressing? could they not be undressing?
Perfect	V-ing perfect
could I not have undressed? could you not have undressed? could she not have undressed? could we not have undressed? could you not have undressed? could they not have undressed?	could I not have been undressing? could you not have been undressing? could she not have been undressing? could we not have been undressing? could you not have been undressing? could they not have been undressing?