I can sip you can sip she can sip we can sip you can sip they can sip
Forma com V-ing
I can be sipping you can be sipping she can be sipping we can be sipping you can be sipping they can be sipping
Perfeito
I can have sipped you can have sipped she can have sipped we can have sipped you can have sipped they can have sipped
Perfeito com V-ing
I can have been sipping you can have been sipping she can have been sipping we can have been sipping you can have been sipping they can have been sipping
Negação
Forma simple
I can't sip you can't sip she can't sip we can't sip you can't sip they can't sip
Forma com V-ing
I can't be sipping you can't be sipping she can't be sipping we can't be sipping you can't be sipping they can't be sipping
Perfeito
I can't have sipped you can't have sipped she can't have sipped we can't have sipped you can't have sipped they can't have sipped
Perfeito com V-ing
I can't have been sipping you can't have been sipping she can't have been sipping we can't have been sipping you can't have been sipping they can't have been sipping
Forma interrogativa
Forma simple
can I sip? can you sip? can she sip? can we sip? can you sip? can they sip?
Forma com V-ing
can I be sipping? can you be sipping? can she be sipping? can we be sipping? can you be sipping? can they be sipping?
Perfeito
can I have sipped? can you have sipped? can she have sipped? can we have sipped? can you have sipped? can they have sipped?
Perfeito com V-ing
can I have been sipping? can you have been sipping? can she have been sipping? can we have been sipping? can you have been sipping? can they have been sipping?
Forma interro-Negação
Forma simple
can't I sip? can't you sip? can't she sip? can't we sip? can't you sip? can't they sip?
Forma com V-ing
can't I be sipping? can't you be sipping? can't she be sipping? can't we be sipping? can't you be sipping? can't they be sipping?
Perfeito
can't I have sipped? can't you have sipped? can't she have sipped? can't we have sipped? can't you have sipped? can't they have sipped?
Perfeito com V-ing
can't I have been sipping? can't you have been sipping? can't she have been sipping? can't we have been sipping? can't you have been sipping? can't they have been sipping?