I must stir you must stir she must stir we must stir you must stir they must stir
Forma com V-ing
I must be stirring you must be stirring she must be stirring we must be stirring you must be stirring they must be stirring
Perfeito
I must have stirred you must have stirred she must have stirred we must have stirred you must have stirred they must have stirred
Perfeito com V-ing
I must have been stirring you must have been stirring she must have been stirring we must have been stirring you must have been stirring they must have been stirring
Negação
Forma simple
I must not stir you must not stir she must not stir we must not stir you must not stir they must not stir
Forma com V-ing
I must not be stirring you must not be stirring she must not be stirring we must not be stirring you must not be stirring they must not be stirring
Perfeito
I must not have stirred you must not have stirred she must not have stirred we must not have stirred you must not have stirred they must not have stirred
Perfeito com V-ing
I must not have been stirring you must not have been stirring she must not have been stirring we must not have been stirring you must not have been stirring they must not have been stirring
Forma interrogativa
Forma simple
must I stir? must you stir? must she stir? must we stir? must you stir? must they stir?
Forma com V-ing
must I be stirring? must you be stirring? must she be stirring? must we be stirring? must you be stirring? must they be stirring?
Perfeito
must I have stirred? must you have stirred? must she have stirred? must we have stirred? must you have stirred? must they have stirred?
Perfeito com V-ing
must I have been stirring? must you have been stirring? must she have been stirring? must we have been stirring? must you have been stirring? must they have been stirring?
Forma interro-Negação
Forma simple
must I not stir? must you not stir? must she not stir? must we not stir? must you not stir? must they not stir?
Forma com V-ing
must I not be stirring? must you not be stirring? must she not be stirring? must we not be stirring? must you not be stirring? must they not be stirring?
Perfeito
must I not have stirred? must you not have stirred? must she not have stirred? must we not have stirred? must you not have stirred? must they not have stirred?
Perfeito com V-ing
must I not have been stirring? must you not have been stirring? must she not have been stirring? must we not have been stirring? must you not have been stirring? must they not have been stirring?