I must mature you must mature he must mature we must mature you must mature they must mature
Forme en V-ing
I must be maturing you must be maturing he must be maturing we must be maturing you must be maturing they must be maturing
Perfect
I must have matured you must have matured he must have matured we must have matured you must have matured they must have matured
Perfect en V-ing
I must have been maturing you must have been maturing he must have been maturing we must have been maturing you must have been maturing they must have been maturing
Négation
Forme simple
I must not mature you must not mature he must not mature we must not mature you must not mature they must not mature
Forme en V-ing
I must not be maturing you must not be maturing he must not be maturing we must not be maturing you must not be maturing they must not be maturing
Perfect
I must not have matured you must not have matured he must not have matured we must not have matured you must not have matured they must not have matured
Perfect en V-ing
I must not have been maturing you must not have been maturing he must not have been maturing we must not have been maturing you must not have been maturing they must not have been maturing
Forme interrogative
Forme simple
must I mature? must you mature? must he mature? must we mature? must you mature? must they mature?
Forme en V-ing
must I be maturing? must you be maturing? must he be maturing? must we be maturing? must you be maturing? must they be maturing?
Perfect
must I have matured? must you have matured? must he have matured? must we have matured? must you have matured? must they have matured?
Perfect en V-ing
must I have been maturing? must you have been maturing? must he have been maturing? must we have been maturing? must you have been maturing? must they have been maturing?
Forme interro-négative
Forme simple
must I not mature? must you not mature? must he not mature? must we not mature? must you not mature? must they not mature?
Forme en V-ing
must I not be maturing? must you not be maturing? must he not be maturing? must we not be maturing? must you not be maturing? must they not be maturing?
Perfect
must I not have matured? must you not have matured? must he not have matured? must we not have matured? must you not have matured? must they not have matured?
Perfect en V-ing
must I not have been maturing? must you not have been maturing? must he not have been maturing? must we not have been maturing? must you not have been maturing? must they not have been maturing?