I must retread you must retread he must retread we must retread you must retread they must retread
Forme en V-ing
I must be retreading you must be retreading he must be retreading we must be retreading you must be retreading they must be retreading
Perfect
I must have retreaded you must have retreaded he must have retreaded we must have retreaded you must have retreaded they must have retreaded
Perfect en V-ing
I must have been retreading you must have been retreading he must have been retreading we must have been retreading you must have been retreading they must have been retreading
Négation
Forme simple
I must not retread you must not retread he must not retread we must not retread you must not retread they must not retread
Forme en V-ing
I must not be retreading you must not be retreading he must not be retreading we must not be retreading you must not be retreading they must not be retreading
Perfect
I must not have retreaded you must not have retreaded he must not have retreaded we must not have retreaded you must not have retreaded they must not have retreaded
Perfect en V-ing
I must not have been retreading you must not have been retreading he must not have been retreading we must not have been retreading you must not have been retreading they must not have been retreading
Forme interrogative
Forme simple
must I retread? must you retread? must he retread? must we retread? must you retread? must they retread?
Forme en V-ing
must I be retreading? must you be retreading? must he be retreading? must we be retreading? must you be retreading? must they be retreading?
Perfect
must I have retreaded? must you have retreaded? must he have retreaded? must we have retreaded? must you have retreaded? must they have retreaded?
Perfect en V-ing
must I have been retreading? must you have been retreading? must he have been retreading? must we have been retreading? must you have been retreading? must they have been retreading?
Forme interro-négative
Forme simple
must I not retread? must you not retread? must he not retread? must we not retread? must you not retread? must they not retread?
Forme en V-ing
must I not be retreading? must you not be retreading? must he not be retreading? must we not be retreading? must you not be retreading? must they not be retreading?
Perfect
must I not have retreaded? must you not have retreaded? must he not have retreaded? must we not have retreaded? must you not have retreaded? must they not have retreaded?
Perfect en V-ing
must I not have been retreading? must you not have been retreading? must he not have been retreading? must we not have been retreading? must you not have been retreading? must they not have been retreading?