Verbo regolare: strengthen - strengthened - strengthened
Affermazione
Forma semplice
I could strengthen you could strengthen he could strengthen we could strengthen you could strengthen they could strengthen
Forma con V-ing
I could be strengthening you could be strengthening he could be strengthening we could be strengthening you could be strengthening they could be strengthening
Perfetto
I could have strengthened you could have strengthened he could have strengthened we could have strengthened you could have strengthened they could have strengthened
Perfetto con V-ing
I could have been strengthening you could have been strengthening he could have been strengthening we could have been strengthening you could have been strengthening they could have been strengthening
Negazione
Forma semplice
I could not strengthen you could not strengthen he could not strengthen we could not strengthen you could not strengthen they could not strengthen
Forma con V-ing
I could not be strengthening you could not be strengthening he could not be strengthening we could not be strengthening you could not be strengthening they could not be strengthening
Perfetto
I could not have strengthened you could not have strengthened he could not have strengthened we could not have strengthened you could not have strengthened they could not have strengthened
Perfetto con V-ing
I could not have been strengthening you could not have been strengthening he could not have been strengthening we could not have been strengthening you could not have been strengthening they could not have been strengthening
Forma interrogativa
Forma semplice
could I strengthen? could you strengthen? could he strengthen? could we strengthen? could you strengthen? could they strengthen?
Forma con V-ing
could I be strengthening? could you be strengthening? could he be strengthening? could we be strengthening? could you be strengthening? could they be strengthening?
Perfetto
could I have strengthened? could you have strengthened? could he have strengthened? could we have strengthened? could you have strengthened? could they have strengthened?
Perfetto con V-ing
could I have been strengthening? could you have been strengthening? could he have been strengthening? could we have been strengthening? could you have been strengthening? could they have been strengthening?
Forma interro-negativa
Forma semplice
could I not strengthen? could you not strengthen? could he not strengthen? could we not strengthen? could you not strengthen? could they not strengthen?
Forma con V-ing
could I not be strengthening? could you not be strengthening? could he not be strengthening? could we not be strengthening? could you not be strengthening? could they not be strengthening?
Perfetto
could I not have strengthened? could you not have strengthened? could he not have strengthened? could we not have strengthened? could you not have strengthened? could they not have strengthened?
Perfetto con V-ing
could I not have been strengthening? could you not have been strengthening? could he not have been strengthening? could we not have been strengthening? could you not have been strengthening? could they not have been strengthening?