Conjugação do verbo inglês
CAN STAFF

Verbo regular: staff - staffed - staffed

Afirmação

Forma simple	Forma com V-ing
I can staff you can staff he can staff we can staff you can staff they can staff	I can be staffing you can be staffing he can be staffing we can be staffing you can be staffing they can be staffing
Perfeito	Perfeito com V-ing
I can have staffed you can have staffed he can have staffed we can have staffed you can have staffed they can have staffed	I can have been staffing you can have been staffing he can have been staffing we can have been staffing you can have been staffing they can have been staffing

Negação

Forma simple	Forma com V-ing
I can't staff you can't staff he can't staff we can't staff you can't staff they can't staff	I can't be staffing you can't be staffing he can't be staffing we can't be staffing you can't be staffing they can't be staffing
Perfeito	Perfeito com V-ing
I can't have staffed you can't have staffed he can't have staffed we can't have staffed you can't have staffed they can't have staffed	I can't have been staffing you can't have been staffing he can't have been staffing we can't have been staffing you can't have been staffing they can't have been staffing

Forma interrogativa

Forma simple	Forma com V-ing
can I staff? can you staff? can he staff? can we staff? can you staff? can they staff?	can I be staffing? can you be staffing? can he be staffing? can we be staffing? can you be staffing? can they be staffing?
Perfeito	Perfeito com V-ing
can I have staffed? can you have staffed? can he have staffed? can we have staffed? can you have staffed? can they have staffed?	can I have been staffing? can you have been staffing? can he have been staffing? can we have been staffing? can you have been staffing? can they have been staffing?

Forma interro-Negação

Forma simple	Forma com V-ing
can't I staff? can't you staff? can't he staff? can't we staff? can't you staff? can't they staff?	can't I be staffing? can't you be staffing? can't he be staffing? can't we be staffing? can't you be staffing? can't they be staffing?
Perfeito	Perfeito com V-ing
can't I have staffed? can't you have staffed? can't he have staffed? can't we have staffed? can't you have staffed? can't they have staffed?	can't I have been staffing? can't you have been staffing? can't he have been staffing? can't we have been staffing? can't you have been staffing? can't they have been staffing?