I may liaise you may liaise she may liaise we may liaise you may liaise they may liaise
V-ing form
I may be liaising you may be liaising she may be liaising we may be liaising you may be liaising they may be liaising
Perfect
I may have liaised you may have liaised she may have liaised we may have liaised you may have liaised they may have liaised
V-ing perfect
I may have been liaising you may have been liaising she may have been liaising we may have been liaising you may have been liaising they may have been liaising
Negation
Simple form
I may not liaise you may not liaise she may not liaise we may not liaise you may not liaise they may not liaise
V-ing form
I may not be liaising you may not be liaising she may not be liaising we may not be liaising you may not be liaising they may not be liaising
Perfect
I may not have liaised you may not have liaised she may not have liaised we may not have liaised you may not have liaised they may not have liaised
V-ing perfect
I may not have been liaising you may not have been liaising she may not have been liaising we may not have been liaising you may not have been liaising they may not have been liaising
Interrogative form
Simple form
may I liaise? may you liaise? may she liaise? may we liaise? may you liaise? may they liaise?
V-ing form
may I be liaising? may you be liaising? may she be liaising? may we be liaising? may you be liaising? may they be liaising?
Perfect
may I have liaised? may you have liaised? may she have liaised? may we have liaised? may you have liaised? may they have liaised?
V-ing perfect
may I have been liaising? may you have been liaising? may she have been liaising? may we have been liaising? may you have been liaising? may they have been liaising?
Interro-negative form
Simple form
may I not liaise? may you not liaise? may she not liaise? may we not liaise? may you not liaise? may they not liaise?
V-ing form
may I not be liaising? may you not be liaising? may she not be liaising? may we not be liaising? may you not be liaising? may they not be liaising?
Perfect
may I not have liaised? may you not have liaised? may she not have liaised? may we not have liaised? may you not have liaised? may they not have liaised?
V-ing perfect
may I not have been liaising? may you not have been liaising? may she not have been liaising? may we not have been liaising? may you not have been liaising? may they not have been liaising?