I must fractionate you must fractionate she must fractionate we must fractionate you must fractionate they must fractionate
Forme en V-ing
I must be fractionating you must be fractionating she must be fractionating we must be fractionating you must be fractionating they must be fractionating
Perfect
I must have fractionated you must have fractionated she must have fractionated we must have fractionated you must have fractionated they must have fractionated
Perfect en V-ing
I must have been fractionating you must have been fractionating she must have been fractionating we must have been fractionating you must have been fractionating they must have been fractionating
Négation
Forme simple
I must not fractionate you must not fractionate she must not fractionate we must not fractionate you must not fractionate they must not fractionate
Forme en V-ing
I must not be fractionating you must not be fractionating she must not be fractionating we must not be fractionating you must not be fractionating they must not be fractionating
Perfect
I must not have fractionated you must not have fractionated she must not have fractionated we must not have fractionated you must not have fractionated they must not have fractionated
Perfect en V-ing
I must not have been fractionating you must not have been fractionating she must not have been fractionating we must not have been fractionating you must not have been fractionating they must not have been fractionating
Forme interrogative
Forme simple
must I fractionate? must you fractionate? must she fractionate? must we fractionate? must you fractionate? must they fractionate?
Forme en V-ing
must I be fractionating? must you be fractionating? must she be fractionating? must we be fractionating? must you be fractionating? must they be fractionating?
Perfect
must I have fractionated? must you have fractionated? must she have fractionated? must we have fractionated? must you have fractionated? must they have fractionated?
Perfect en V-ing
must I have been fractionating? must you have been fractionating? must she have been fractionating? must we have been fractionating? must you have been fractionating? must they have been fractionating?
Forme interro-négative
Forme simple
must I not fractionate? must you not fractionate? must she not fractionate? must we not fractionate? must you not fractionate? must they not fractionate?
Forme en V-ing
must I not be fractionating? must you not be fractionating? must she not be fractionating? must we not be fractionating? must you not be fractionating? must they not be fractionating?
Perfect
must I not have fractionated? must you not have fractionated? must she not have fractionated? must we not have fractionated? must you not have fractionated? must they not have fractionated?
Perfect en V-ing
must I not have been fractionating? must you not have been fractionating? must she not have been fractionating? must we not have been fractionating? must you not have been fractionating? must they not have been fractionating?