I may ripen you may ripen he may ripen we may ripen you may ripen they may ripen
V-ing form
I may be ripening you may be ripening he may be ripening we may be ripening you may be ripening they may be ripening
Perfect
I may have ripened you may have ripened he may have ripened we may have ripened you may have ripened they may have ripened
V-ing perfect
I may have been ripening you may have been ripening he may have been ripening we may have been ripening you may have been ripening they may have been ripening
Negation
Simple form
I may not ripen you may not ripen he may not ripen we may not ripen you may not ripen they may not ripen
V-ing form
I may not be ripening you may not be ripening he may not be ripening we may not be ripening you may not be ripening they may not be ripening
Perfect
I may not have ripened you may not have ripened he may not have ripened we may not have ripened you may not have ripened they may not have ripened
V-ing perfect
I may not have been ripening you may not have been ripening he may not have been ripening we may not have been ripening you may not have been ripening they may not have been ripening
Interrogative form
Simple form
may I ripen? may you ripen? may he ripen? may we ripen? may you ripen? may they ripen?
V-ing form
may I be ripening? may you be ripening? may he be ripening? may we be ripening? may you be ripening? may they be ripening?
Perfect
may I have ripened? may you have ripened? may he have ripened? may we have ripened? may you have ripened? may they have ripened?
V-ing perfect
may I have been ripening? may you have been ripening? may he have been ripening? may we have been ripening? may you have been ripening? may they have been ripening?
Interro-negative form
Simple form
may I not ripen? may you not ripen? may he not ripen? may we not ripen? may you not ripen? may they not ripen?
V-ing form
may I not be ripening? may you not be ripening? may he not be ripening? may we not be ripening? may you not be ripening? may they not be ripening?
Perfect
may I not have ripened? may you not have ripened? may he not have ripened? may we not have ripened? may you not have ripened? may they not have ripened?
V-ing perfect
may I not have been ripening? may you not have been ripening? may he not have been ripening? may we not have been ripening? may you not have been ripening? may they not have been ripening?