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