English verb conjugation
CAN UNDRESS

Regular verb: undress - undressed - undressed

Affirmation

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

Negation

Simple form	V-ing form
I can't undress you can't undress he can't undress we can't undress you can't undress they can't undress	I can't be undressing you can't be undressing he can't be undressing we can't be undressing you can't be undressing they can't be undressing
Perfect	V-ing perfect
I can't have undressed you can't have undressed he can't have undressed we can't have undressed you can't have undressed they can't have undressed	I can't have been undressing you can't have been undressing he can't have been undressing we can't have been undressing you can't have been undressing they can't have been undressing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I undress? can't you undress? can't he undress? can't we undress? can't you undress? can't they undress?	can't I be undressing? can't you be undressing? can't he be undressing? can't we be undressing? can't you be undressing? can't they be undressing?
Perfect	V-ing perfect
can't I have undressed? can't you have undressed? can't he have undressed? can't we have undressed? can't you have undressed? can't they have undressed?	can't I have been undressing? can't you have been undressing? can't he have been undressing? can't we have been undressing? can't you have been undressing? can't they have been undressing?