I may frustrate you may frustrate he may frustrate we may frustrate you may frustrate they may frustrate
Forme en V-ing
I may be frustrating you may be frustrating he may be frustrating we may be frustrating you may be frustrating they may be frustrating
Perfect
I may have frustrated you may have frustrated he may have frustrated we may have frustrated you may have frustrated they may have frustrated
Perfect en V-ing
I may have been frustrating you may have been frustrating he may have been frustrating we may have been frustrating you may have been frustrating they may have been frustrating
Négation
Forme simple
I may not frustrate you may not frustrate he may not frustrate we may not frustrate you may not frustrate they may not frustrate
Forme en V-ing
I may not be frustrating you may not be frustrating he may not be frustrating we may not be frustrating you may not be frustrating they may not be frustrating
Perfect
I may not have frustrated you may not have frustrated he may not have frustrated we may not have frustrated you may not have frustrated they may not have frustrated
Perfect en V-ing
I may not have been frustrating you may not have been frustrating he may not have been frustrating we may not have been frustrating you may not have been frustrating they may not have been frustrating
Forme interrogative
Forme simple
may I frustrate? may you frustrate? may he frustrate? may we frustrate? may you frustrate? may they frustrate?
Forme en V-ing
may I be frustrating? may you be frustrating? may he be frustrating? may we be frustrating? may you be frustrating? may they be frustrating?
Perfect
may I have frustrated? may you have frustrated? may he have frustrated? may we have frustrated? may you have frustrated? may they have frustrated?
Perfect en V-ing
may I have been frustrating? may you have been frustrating? may he have been frustrating? may we have been frustrating? may you have been frustrating? may they have been frustrating?
Forme interro-négative
Forme simple
may I not frustrate? may you not frustrate? may he not frustrate? may we not frustrate? may you not frustrate? may they not frustrate?
Forme en V-ing
may I not be frustrating? may you not be frustrating? may he not be frustrating? may we not be frustrating? may you not be frustrating? may they not be frustrating?
Perfect
may I not have frustrated? may you not have frustrated? may he not have frustrated? may we not have frustrated? may you not have frustrated? may they not have frustrated?
Perfect en V-ing
may I not have been frustrating? may you not have been frustrating? may he not have been frustrating? may we not have been frustrating? may you not have been frustrating? may they not have been frustrating?