I could starch you could starch he could starch we could starch you could starch they could starch
Forma com V-ing
I could be starching you could be starching he could be starching we could be starching you could be starching they could be starching
Perfeito
I could have starched you could have starched he could have starched we could have starched you could have starched they could have starched
Perfeito com V-ing
I could have been starching you could have been starching he could have been starching we could have been starching you could have been starching they could have been starching
Negação
Forma simple
I couldn't starch you couldn't starch he couldn't starch we couldn't starch you couldn't starch they couldn't starch
Forma com V-ing
I couldn't be starching you couldn't be starching he couldn't be starching we couldn't be starching you couldn't be starching they couldn't be starching
Perfeito
I couldn't have starched you couldn't have starched he couldn't have starched we couldn't have starched you couldn't have starched they couldn't have starched
Perfeito com V-ing
I couldn't have been starching you couldn't have been starching he couldn't have been starching we couldn't have been starching you couldn't have been starching they couldn't have been starching
Forma interrogativa
Forma simple
could I starch? could you starch? could he starch? could we starch? could you starch? could they starch?
Forma com V-ing
could I be starching? could you be starching? could he be starching? could we be starching? could you be starching? could they be starching?
Perfeito
could I have starched? could you have starched? could he have starched? could we have starched? could you have starched? could they have starched?
Perfeito com V-ing
could I have been starching? could you have been starching? could he have been starching? could we have been starching? could you have been starching? could they have been starching?
Forma interro-Negação
Forma simple
couldn't I starch? couldn't you starch? couldn't he starch? couldn't we starch? couldn't you starch? couldn't they starch?
Forma com V-ing
couldn't I be starching? couldn't you be starching? couldn't he be starching? couldn't we be starching? couldn't you be starching? couldn't they be starching?
Perfeito
couldn't I have starched? couldn't you have starched? couldn't he have starched? couldn't we have starched? couldn't you have starched? couldn't they have starched?
Perfeito com V-ing
couldn't I have been starching? couldn't you have been starching? couldn't he have been starching? couldn't we have been starching? couldn't you have been starching? couldn't they have been starching?