I must better you must better he must better we must better you must better they must better
Forma com V-ing
I must be bettering you must be bettering he must be bettering we must be bettering you must be bettering they must be bettering
Perfeito
I must have bettered you must have bettered he must have bettered we must have bettered you must have bettered they must have bettered
Perfeito com V-ing
I must have been bettering you must have been bettering he must have been bettering we must have been bettering you must have been bettering they must have been bettering
Negação
Forma simple
I must not better you must not better he must not better we must not better you must not better they must not better
Forma com V-ing
I must not be bettering you must not be bettering he must not be bettering we must not be bettering you must not be bettering they must not be bettering
Perfeito
I must not have bettered you must not have bettered he must not have bettered we must not have bettered you must not have bettered they must not have bettered
Perfeito com V-ing
I must not have been bettering you must not have been bettering he must not have been bettering we must not have been bettering you must not have been bettering they must not have been bettering
Forma interrogativa
Forma simple
must I better? must you better? must he better? must we better? must you better? must they better?
Forma com V-ing
must I be bettering? must you be bettering? must he be bettering? must we be bettering? must you be bettering? must they be bettering?
Perfeito
must I have bettered? must you have bettered? must he have bettered? must we have bettered? must you have bettered? must they have bettered?
Perfeito com V-ing
must I have been bettering? must you have been bettering? must he have been bettering? must we have been bettering? must you have been bettering? must they have been bettering?
Forma interro-Negação
Forma simple
must I not better? must you not better? must he not better? must we not better? must you not better? must they not better?
Forma com V-ing
must I not be bettering? must you not be bettering? must he not be bettering? must we not be bettering? must you not be bettering? must they not be bettering?
Perfeito
must I not have bettered? must you not have bettered? must he not have bettered? must we not have bettered? must you not have bettered? must they not have bettered?
Perfeito com V-ing
must I not have been bettering? must you not have been bettering? must he not have been bettering? must we not have been bettering? must you not have been bettering? must they not have been bettering?