I must tip you must tip he must tip we must tip you must tip they must tip
Forma con V-ing
I must be tipping you must be tipping he must be tipping we must be tipping you must be tipping they must be tipping
Perfecto
I must have tipped you must have tipped he must have tipped we must have tipped you must have tipped they must have tipped
Perfecto con V-ing
I must have been tipping you must have been tipping he must have been tipping we must have been tipping you must have been tipping they must have been tipping
Negación
Forma simple
I must not tip you must not tip he must not tip we must not tip you must not tip they must not tip
Forma con V-ing
I must not be tipping you must not be tipping he must not be tipping we must not be tipping you must not be tipping they must not be tipping
Perfecto
I must not have tipped you must not have tipped he must not have tipped we must not have tipped you must not have tipped they must not have tipped
Perfecto con V-ing
I must not have been tipping you must not have been tipping he must not have been tipping we must not have been tipping you must not have been tipping they must not have been tipping
Forma interrogativa
Forma simple
must I tip? must you tip? must he tip? must we tip? must you tip? must they tip?
Forma con V-ing
must I be tipping? must you be tipping? must he be tipping? must we be tipping? must you be tipping? must they be tipping?
Perfecto
must I have tipped? must you have tipped? must he have tipped? must we have tipped? must you have tipped? must they have tipped?
Perfecto con V-ing
must I have been tipping? must you have been tipping? must he have been tipping? must we have been tipping? must you have been tipping? must they have been tipping?
Forma interro-negativa
Forma simple
must I not tip? must you not tip? must he not tip? must we not tip? must you not tip? must they not tip?
Forma con V-ing
must I not be tipping? must you not be tipping? must he not be tipping? must we not be tipping? must you not be tipping? must they not be tipping?
Perfecto
must I not have tipped? must you not have tipped? must he not have tipped? must we not have tipped? must you not have tipped? must they not have tipped?
Perfecto con V-ing
must I not have been tipping? must you not have been tipping? must he not have been tipping? must we not have been tipping? must you not have been tipping? must they not have been tipping?