English verb conjugation
CAN FURBISH

Regular verb: furbish - furbished - furbished

Affirmation

Simple form	V-ing form
I can furbish you can furbish he can furbish we can furbish you can furbish they can furbish	I can be furbishing you can be furbishing he can be furbishing we can be furbishing you can be furbishing they can be furbishing
Perfect	V-ing perfect
I can have furbished you can have furbished he can have furbished we can have furbished you can have furbished they can have furbished	I can have been furbishing you can have been furbishing he can have been furbishing we can have been furbishing you can have been furbishing they can have been furbishing

Negation

Simple form	V-ing form
I cannot furbish you cannot furbish he cannot furbish we cannot furbish you cannot furbish they cannot furbish	I cannot be furbishing you cannot be furbishing he cannot be furbishing we cannot be furbishing you cannot be furbishing they cannot be furbishing
Perfect	V-ing perfect
I cannot have furbished you cannot have furbished he cannot have furbished we cannot have furbished you cannot have furbished they cannot have furbished	I cannot have been furbishing you cannot have been furbishing he cannot have been furbishing we cannot have been furbishing you cannot have been furbishing they cannot have been furbishing

Interrogative form

Simple form	V-ing form
can I furbish? can you furbish? can he furbish? can we furbish? can you furbish? can they furbish?	can I be furbishing? can you be furbishing? can he be furbishing? can we be furbishing? can you be furbishing? can they be furbishing?
Perfect	V-ing perfect
can I have furbished? can you have furbished? can he have furbished? can we have furbished? can you have furbished? can they have furbished?	can I have been furbishing? can you have been furbishing? can he have been furbishing? can we have been furbishing? can you have been furbishing? can they have been furbishing?

Interro-negative form

Simple form	V-ing form
can I not furbish? can you not furbish? can he not furbish? can we not furbish? can you not furbish? can they not furbish?	can I not be furbishing? can you not be furbishing? can he not be furbishing? can we not be furbishing? can you not be furbishing? can they not be furbishing?
Perfect	V-ing perfect
can I not have furbished? can you not have furbished? can he not have furbished? can we not have furbished? can you not have furbished? can they not have furbished?	can I not have been furbishing? can you not have been furbishing? can he not have been furbishing? can we not have been furbishing? can you not have been furbishing? can they not have been furbishing?