I could focus you could focus he could focus we could focus you could focus they could focus
Forma com V-ing
I could be focusing you could be focusing he could be focusing we could be focusing you could be focusing they could be focusing
Perfeito
I could have focused you could have focused he could have focused we could have focused you could have focused they could have focused
Perfeito com V-ing
I could have been focusing you could have been focusing he could have been focusing we could have been focusing you could have been focusing they could have been focusing
Negação
Forma simple
I couldn't focus you couldn't focus he couldn't focus we couldn't focus you couldn't focus they couldn't focus
Forma com V-ing
I couldn't be focusing you couldn't be focusing he couldn't be focusing we couldn't be focusing you couldn't be focusing they couldn't be focusing
Perfeito
I couldn't have focused you couldn't have focused he couldn't have focused we couldn't have focused you couldn't have focused they couldn't have focused
Perfeito com V-ing
I couldn't have been focusing you couldn't have been focusing he couldn't have been focusing we couldn't have been focusing you couldn't have been focusing they couldn't have been focusing
Forma interrogativa
Forma simple
could I focus? could you focus? could he focus? could we focus? could you focus? could they focus?
Forma com V-ing
could I be focusing? could you be focusing? could he be focusing? could we be focusing? could you be focusing? could they be focusing?
Perfeito
could I have focused? could you have focused? could he have focused? could we have focused? could you have focused? could they have focused?
Perfeito com V-ing
could I have been focusing? could you have been focusing? could he have been focusing? could we have been focusing? could you have been focusing? could they have been focusing?
Forma interro-Negação
Forma simple
couldn't I focus? couldn't you focus? couldn't he focus? couldn't we focus? couldn't you focus? couldn't they focus?
Forma com V-ing
couldn't I be focusing? couldn't you be focusing? couldn't he be focusing? couldn't we be focusing? couldn't you be focusing? couldn't they be focusing?
Perfeito
couldn't I have focused? couldn't you have focused? couldn't he have focused? couldn't we have focused? couldn't you have focused? couldn't they have focused?
Perfeito com V-ing
couldn't I have been focusing? couldn't you have been focusing? couldn't he have been focusing? couldn't we have been focusing? couldn't you have been focusing? couldn't they have been focusing?