I can site you can site he can site we can site you can site they can site
Forma com V-ing
I can be siting you can be siting he can be siting we can be siting you can be siting they can be siting
Perfeito
I can have sited you can have sited he can have sited we can have sited you can have sited they can have sited
Perfeito com V-ing
I can have been siting you can have been siting he can have been siting we can have been siting you can have been siting they can have been siting
Negação
Forma simple
I can't site you can't site he can't site we can't site you can't site they can't site
Forma com V-ing
I can't be siting you can't be siting he can't be siting we can't be siting you can't be siting they can't be siting
Perfeito
I can't have sited you can't have sited he can't have sited we can't have sited you can't have sited they can't have sited
Perfeito com V-ing
I can't have been siting you can't have been siting he can't have been siting we can't have been siting you can't have been siting they can't have been siting
Forma interrogativa
Forma simple
can I site? can you site? can he site? can we site? can you site? can they site?
Forma com V-ing
can I be siting? can you be siting? can he be siting? can we be siting? can you be siting? can they be siting?
Perfeito
can I have sited? can you have sited? can he have sited? can we have sited? can you have sited? can they have sited?
Perfeito com V-ing
can I have been siting? can you have been siting? can he have been siting? can we have been siting? can you have been siting? can they have been siting?
Forma interro-Negação
Forma simple
can't I site? can't you site? can't he site? can't we site? can't you site? can't they site?
Forma com V-ing
can't I be siting? can't you be siting? can't he be siting? can't we be siting? can't you be siting? can't they be siting?
Perfeito
can't I have sited? can't you have sited? can't he have sited? can't we have sited? can't you have sited? can't they have sited?
Perfeito com V-ing
can't I have been siting? can't you have been siting? can't he have been siting? can't we have been siting? can't you have been siting? can't they have been siting?