I must struggle you must struggle he must struggle we must struggle you must struggle they must struggle
Forma com V-ing
I must be struggling you must be struggling he must be struggling we must be struggling you must be struggling they must be struggling
Perfeito
I must have struggled you must have struggled he must have struggled we must have struggled you must have struggled they must have struggled
Perfeito com V-ing
I must have been struggling you must have been struggling he must have been struggling we must have been struggling you must have been struggling they must have been struggling
Negação
Forma simple
I must not struggle you must not struggle he must not struggle we must not struggle you must not struggle they must not struggle
Forma com V-ing
I must not be struggling you must not be struggling he must not be struggling we must not be struggling you must not be struggling they must not be struggling
Perfeito
I must not have struggled you must not have struggled he must not have struggled we must not have struggled you must not have struggled they must not have struggled
Perfeito com V-ing
I must not have been struggling you must not have been struggling he must not have been struggling we must not have been struggling you must not have been struggling they must not have been struggling
Forma interrogativa
Forma simple
must I struggle? must you struggle? must he struggle? must we struggle? must you struggle? must they struggle?
Forma com V-ing
must I be struggling? must you be struggling? must he be struggling? must we be struggling? must you be struggling? must they be struggling?
Perfeito
must I have struggled? must you have struggled? must he have struggled? must we have struggled? must you have struggled? must they have struggled?
Perfeito com V-ing
must I have been struggling? must you have been struggling? must he have been struggling? must we have been struggling? must you have been struggling? must they have been struggling?
Forma interro-Negação
Forma simple
must I not struggle? must you not struggle? must he not struggle? must we not struggle? must you not struggle? must they not struggle?
Forma com V-ing
must I not be struggling? must you not be struggling? must he not be struggling? must we not be struggling? must you not be struggling? must they not be struggling?
Perfeito
must I not have struggled? must you not have struggled? must he not have struggled? must we not have struggled? must you not have struggled? must they not have struggled?
Perfeito com V-ing
must I not have been struggling? must you not have been struggling? must he not have been struggling? must we not have been struggling? must you not have been struggling? must they not have been struggling?