I may birth you may birth he may birth we may birth you may birth they may birth
Forme en V-ing
I may be birthing you may be birthing he may be birthing we may be birthing you may be birthing they may be birthing
Perfect
I may have birthed you may have birthed he may have birthed we may have birthed you may have birthed they may have birthed
Perfect en V-ing
I may have been birthing you may have been birthing he may have been birthing we may have been birthing you may have been birthing they may have been birthing
Négation
Forme simple
I may not birth you may not birth he may not birth we may not birth you may not birth they may not birth
Forme en V-ing
I may not be birthing you may not be birthing he may not be birthing we may not be birthing you may not be birthing they may not be birthing
Perfect
I may not have birthed you may not have birthed he may not have birthed we may not have birthed you may not have birthed they may not have birthed
Perfect en V-ing
I may not have been birthing you may not have been birthing he may not have been birthing we may not have been birthing you may not have been birthing they may not have been birthing
Forme interrogative
Forme simple
may I birth? may you birth? may he birth? may we birth? may you birth? may they birth?
Forme en V-ing
may I be birthing? may you be birthing? may he be birthing? may we be birthing? may you be birthing? may they be birthing?
Perfect
may I have birthed? may you have birthed? may he have birthed? may we have birthed? may you have birthed? may they have birthed?
Perfect en V-ing
may I have been birthing? may you have been birthing? may he have been birthing? may we have been birthing? may you have been birthing? may they have been birthing?
Forme interro-négative
Forme simple
may I not birth? may you not birth? may he not birth? may we not birth? may you not birth? may they not birth?
Forme en V-ing
may I not be birthing? may you not be birthing? may he not be birthing? may we not be birthing? may you not be birthing? may they not be birthing?
Perfect
may I not have birthed? may you not have birthed? may he not have birthed? may we not have birthed? may you not have birthed? may they not have birthed?
Perfect en V-ing
may I not have been birthing? may you not have been birthing? may he not have been birthing? may we not have been birthing? may you not have been birthing? may they not have been birthing?