I may preacknowledge you may preacknowledge he may preacknowledge we may preacknowledge you may preacknowledge they may preacknowledge
V-ing form
I may be preacknowledging you may be preacknowledging he may be preacknowledging we may be preacknowledging you may be preacknowledging they may be preacknowledging
Perfect
I may have preacknowledged you may have preacknowledged he may have preacknowledged we may have preacknowledged you may have preacknowledged they may have preacknowledged
V-ing perfect
I may have been preacknowledging you may have been preacknowledging he may have been preacknowledging we may have been preacknowledging you may have been preacknowledging they may have been preacknowledging
Negation
Simple form
I may not preacknowledge you may not preacknowledge he may not preacknowledge we may not preacknowledge you may not preacknowledge they may not preacknowledge
V-ing form
I may not be preacknowledging you may not be preacknowledging he may not be preacknowledging we may not be preacknowledging you may not be preacknowledging they may not be preacknowledging
Perfect
I may not have preacknowledged you may not have preacknowledged he may not have preacknowledged we may not have preacknowledged you may not have preacknowledged they may not have preacknowledged
V-ing perfect
I may not have been preacknowledging you may not have been preacknowledging he may not have been preacknowledging we may not have been preacknowledging you may not have been preacknowledging they may not have been preacknowledging
Interrogative form
Simple form
may I preacknowledge? may you preacknowledge? may he preacknowledge? may we preacknowledge? may you preacknowledge? may they preacknowledge?
V-ing form
may I be preacknowledging? may you be preacknowledging? may he be preacknowledging? may we be preacknowledging? may you be preacknowledging? may they be preacknowledging?
Perfect
may I have preacknowledged? may you have preacknowledged? may he have preacknowledged? may we have preacknowledged? may you have preacknowledged? may they have preacknowledged?
V-ing perfect
may I have been preacknowledging? may you have been preacknowledging? may he have been preacknowledging? may we have been preacknowledging? may you have been preacknowledging? may they have been preacknowledging?
Interro-negative form
Simple form
may I not preacknowledge? may you not preacknowledge? may he not preacknowledge? may we not preacknowledge? may you not preacknowledge? may they not preacknowledge?
V-ing form
may I not be preacknowledging? may you not be preacknowledging? may he not be preacknowledging? may we not be preacknowledging? may you not be preacknowledging? may they not be preacknowledging?
Perfect
may I not have preacknowledged? may you not have preacknowledged? may he not have preacknowledged? may we not have preacknowledged? may you not have preacknowledged? may they not have preacknowledged?
V-ing perfect
may I not have been preacknowledging? may you not have been preacknowledging? may he not have been preacknowledging? may we not have been preacknowledging? may you not have been preacknowledging? may they not have been preacknowledging?