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 can't furbish you can't furbish he can't furbish we can't furbish you can't furbish they can't furbish	I can't be furbishing you can't be furbishing he can't be furbishing we can't be furbishing you can't be furbishing they can't be furbishing
Perfect	V-ing perfect
I can't have furbished you can't have furbished he can't have furbished we can't have furbished you can't have furbished they can't have furbished	I can't have been furbishing you can't have been furbishing he can't have been furbishing we can't have been furbishing you can't have been furbishing they can't 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't I furbish? can't you furbish? can't he furbish? can't we furbish? can't you furbish? can't they furbish?	can't I be furbishing? can't you be furbishing? can't he be furbishing? can't we be furbishing? can't you be furbishing? can't they be furbishing?
Perfect	V-ing perfect
can't I have furbished? can't you have furbished? can't he have furbished? can't we have furbished? can't you have furbished? can't they have furbished?	can't I have been furbishing? can't you have been furbishing? can't he have been furbishing? can't we have been furbishing? can't you have been furbishing? can't they have been furbishing?