I must trip you must trip he must trip we must trip you must trip they must trip
Forma con V-ing
I must be tripping you must be tripping he must be tripping we must be tripping you must be tripping they must be tripping
Perfetto
I must have tripped you must have tripped he must have tripped we must have tripped you must have tripped they must have tripped
Perfetto con V-ing
I must have been tripping you must have been tripping he must have been tripping we must have been tripping you must have been tripping they must have been tripping
Negazione
Forma semplice
I must not trip you must not trip he must not trip we must not trip you must not trip they must not trip
Forma con V-ing
I must not be tripping you must not be tripping he must not be tripping we must not be tripping you must not be tripping they must not be tripping
Perfetto
I must not have tripped you must not have tripped he must not have tripped we must not have tripped you must not have tripped they must not have tripped
Perfetto con V-ing
I must not have been tripping you must not have been tripping he must not have been tripping we must not have been tripping you must not have been tripping they must not have been tripping
Forma interrogativa
Forma semplice
must I trip? must you trip? must he trip? must we trip? must you trip? must they trip?
Forma con V-ing
must I be tripping? must you be tripping? must he be tripping? must we be tripping? must you be tripping? must they be tripping?
Perfetto
must I have tripped? must you have tripped? must he have tripped? must we have tripped? must you have tripped? must they have tripped?
Perfetto con V-ing
must I have been tripping? must you have been tripping? must he have been tripping? must we have been tripping? must you have been tripping? must they have been tripping?
Forma interro-negativa
Forma semplice
must I not trip? must you not trip? must he not trip? must we not trip? must you not trip? must they not trip?
Forma con V-ing
must I not be tripping? must you not be tripping? must he not be tripping? must we not be tripping? must you not be tripping? must they not be tripping?
Perfetto
must I not have tripped? must you not have tripped? must he not have tripped? must we not have tripped? must you not have tripped? must they not have tripped?
Perfetto con V-ing
must I not have been tripping? must you not have been tripping? must he not have been tripping? must we not have been tripping? must you not have been tripping? must they not have been tripping?