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