I must discover you must discover he must discover we must discover you must discover they must discover
Forma com V-ing
I must be discovering you must be discovering he must be discovering we must be discovering you must be discovering they must be discovering
Perfeito
I must have discovered you must have discovered he must have discovered we must have discovered you must have discovered they must have discovered
Perfeito com V-ing
I must have been discovering you must have been discovering he must have been discovering we must have been discovering you must have been discovering they must have been discovering
Negação
Forma simple
I must not discover you must not discover he must not discover we must not discover you must not discover they must not discover
Forma com V-ing
I must not be discovering you must not be discovering he must not be discovering we must not be discovering you must not be discovering they must not be discovering
Perfeito
I must not have discovered you must not have discovered he must not have discovered we must not have discovered you must not have discovered they must not have discovered
Perfeito com V-ing
I must not have been discovering you must not have been discovering he must not have been discovering we must not have been discovering you must not have been discovering they must not have been discovering
Forma interrogativa
Forma simple
must I discover? must you discover? must he discover? must we discover? must you discover? must they discover?
Forma com V-ing
must I be discovering? must you be discovering? must he be discovering? must we be discovering? must you be discovering? must they be discovering?
Perfeito
must I have discovered? must you have discovered? must he have discovered? must we have discovered? must you have discovered? must they have discovered?
Perfeito com V-ing
must I have been discovering? must you have been discovering? must he have been discovering? must we have been discovering? must you have been discovering? must they have been discovering?
Forma interro-Negação
Forma simple
must I not discover? must you not discover? must he not discover? must we not discover? must you not discover? must they not discover?
Forma com V-ing
must I not be discovering? must you not be discovering? must he not be discovering? must we not be discovering? must you not be discovering? must they not be discovering?
Perfeito
must I not have discovered? must you not have discovered? must he not have discovered? must we not have discovered? must you not have discovered? must they not have discovered?
Perfeito com V-ing
must I not have been discovering? must you not have been discovering? must he not have been discovering? must we not have been discovering? must you not have been discovering? must they not have been discovering?