I could echo you could echo he could echo we could echo you could echo they could echo
Forma con V-ing
I could be echoing you could be echoing he could be echoing we could be echoing you could be echoing they could be echoing
Perfetto
I could have echoed you could have echoed he could have echoed we could have echoed you could have echoed they could have echoed
Perfetto con V-ing
I could have been echoing you could have been echoing he could have been echoing we could have been echoing you could have been echoing they could have been echoing
Negazione
Forma semplice
I couldn't echo you couldn't echo he couldn't echo we couldn't echo you couldn't echo they couldn't echo
Forma con V-ing
I couldn't be echoing you couldn't be echoing he couldn't be echoing we couldn't be echoing you couldn't be echoing they couldn't be echoing
Perfetto
I couldn't have echoed you couldn't have echoed he couldn't have echoed we couldn't have echoed you couldn't have echoed they couldn't have echoed
Perfetto con V-ing
I couldn't have been echoing you couldn't have been echoing he couldn't have been echoing we couldn't have been echoing you couldn't have been echoing they couldn't have been echoing
Forma interrogativa
Forma semplice
could I echo? could you echo? could he echo? could we echo? could you echo? could they echo?
Forma con V-ing
could I be echoing? could you be echoing? could he be echoing? could we be echoing? could you be echoing? could they be echoing?
Perfetto
could I have echoed? could you have echoed? could he have echoed? could we have echoed? could you have echoed? could they have echoed?
Perfetto con V-ing
could I have been echoing? could you have been echoing? could he have been echoing? could we have been echoing? could you have been echoing? could they have been echoing?
Forma interro-negativa
Forma semplice
couldn't I echo? couldn't you echo? couldn't he echo? couldn't we echo? couldn't you echo? couldn't they echo?
Forma con V-ing
couldn't I be echoing? couldn't you be echoing? couldn't he be echoing? couldn't we be echoing? couldn't you be echoing? couldn't they be echoing?
Perfetto
couldn't I have echoed? couldn't you have echoed? couldn't he have echoed? couldn't we have echoed? couldn't you have echoed? couldn't they have echoed?
Perfetto con V-ing
couldn't I have been echoing? couldn't you have been echoing? couldn't he have been echoing? couldn't we have been echoing? couldn't you have been echoing? couldn't they have been echoing?