English verb conjugation
CAN POLISH

Regular verb: polish - polished - polished

Affirmation

Simple form	V-ing form
I can polish you can polish she can polish we can polish you can polish they can polish	I can be polishing you can be polishing she can be polishing we can be polishing you can be polishing they can be polishing
Perfect	V-ing perfect
I can have polished you can have polished she can have polished we can have polished you can have polished they can have polished	I can have been polishing you can have been polishing she can have been polishing we can have been polishing you can have been polishing they can have been polishing

Negation

Simple form	V-ing form
I can't polish you can't polish she can't polish we can't polish you can't polish they can't polish	I can't be polishing you can't be polishing she can't be polishing we can't be polishing you can't be polishing they can't be polishing
Perfect	V-ing perfect
I can't have polished you can't have polished she can't have polished we can't have polished you can't have polished they can't have polished	I can't have been polishing you can't have been polishing she can't have been polishing we can't have been polishing you can't have been polishing they can't have been polishing

Interrogative form

Simple form	V-ing form
can I polish? can you polish? can she polish? can we polish? can you polish? can they polish?	can I be polishing? can you be polishing? can she be polishing? can we be polishing? can you be polishing? can they be polishing?
Perfect	V-ing perfect
can I have polished? can you have polished? can she have polished? can we have polished? can you have polished? can they have polished?	can I have been polishing? can you have been polishing? can she have been polishing? can we have been polishing? can you have been polishing? can they have been polishing?

Interro-negative form

Simple form	V-ing form
can't I polish? can't you polish? can't she polish? can't we polish? can't you polish? can't they polish?	can't I be polishing? can't you be polishing? can't she be polishing? can't we be polishing? can't you be polishing? can't they be polishing?
Perfect	V-ing perfect
can't I have polished? can't you have polished? can't she have polished? can't we have polished? can't you have polished? can't they have polished?	can't I have been polishing? can't you have been polishing? can't she have been polishing? can't we have been polishing? can't you have been polishing? can't they have been polishing?