I can assist you can assist she can assist we can assist you can assist they can assist
Forma com V-ing
I can be assisting you can be assisting she can be assisting we can be assisting you can be assisting they can be assisting
Perfeito
I can have assisted you can have assisted she can have assisted we can have assisted you can have assisted they can have assisted
Perfeito com V-ing
I can have been assisting you can have been assisting she can have been assisting we can have been assisting you can have been assisting they can have been assisting
Negação
Forma simple
I can't assist you can't assist she can't assist we can't assist you can't assist they can't assist
Forma com V-ing
I can't be assisting you can't be assisting she can't be assisting we can't be assisting you can't be assisting they can't be assisting
Perfeito
I can't have assisted you can't have assisted she can't have assisted we can't have assisted you can't have assisted they can't have assisted
Perfeito com V-ing
I can't have been assisting you can't have been assisting she can't have been assisting we can't have been assisting you can't have been assisting they can't have been assisting
Forma interrogativa
Forma simple
can I assist? can you assist? can she assist? can we assist? can you assist? can they assist?
Forma com V-ing
can I be assisting? can you be assisting? can she be assisting? can we be assisting? can you be assisting? can they be assisting?
Perfeito
can I have assisted? can you have assisted? can she have assisted? can we have assisted? can you have assisted? can they have assisted?
Perfeito com V-ing
can I have been assisting? can you have been assisting? can she have been assisting? can we have been assisting? can you have been assisting? can they have been assisting?
Forma interro-Negação
Forma simple
can't I assist? can't you assist? can't she assist? can't we assist? can't you assist? can't they assist?
Forma com V-ing
can't I be assisting? can't you be assisting? can't she be assisting? can't we be assisting? can't you be assisting? can't they be assisting?
Perfeito
can't I have assisted? can't you have assisted? can't she have assisted? can't we have assisted? can't you have assisted? can't they have assisted?
Perfeito com V-ing
can't I have been assisting? can't you have been assisting? can't she have been assisting? can't we have been assisting? can't you have been assisting? can't they have been assisting?