I may tremble you may tremble she may tremble we may tremble you may tremble they may tremble
V-ing form
I may be trembling you may be trembling she may be trembling we may be trembling you may be trembling they may be trembling
Perfect
I may have trembled you may have trembled she may have trembled we may have trembled you may have trembled they may have trembled
V-ing perfect
I may have been trembling you may have been trembling she may have been trembling we may have been trembling you may have been trembling they may have been trembling
Negation
Simple form
I may not tremble you may not tremble she may not tremble we may not tremble you may not tremble they may not tremble
V-ing form
I may not be trembling you may not be trembling she may not be trembling we may not be trembling you may not be trembling they may not be trembling
Perfect
I may not have trembled you may not have trembled she may not have trembled we may not have trembled you may not have trembled they may not have trembled
V-ing perfect
I may not have been trembling you may not have been trembling she may not have been trembling we may not have been trembling you may not have been trembling they may not have been trembling
Interrogative form
Simple form
may I tremble? may you tremble? may she tremble? may we tremble? may you tremble? may they tremble?
V-ing form
may I be trembling? may you be trembling? may she be trembling? may we be trembling? may you be trembling? may they be trembling?
Perfect
may I have trembled? may you have trembled? may she have trembled? may we have trembled? may you have trembled? may they have trembled?
V-ing perfect
may I have been trembling? may you have been trembling? may she have been trembling? may we have been trembling? may you have been trembling? may they have been trembling?
Interro-negative form
Simple form
may I not tremble? may you not tremble? may she not tremble? may we not tremble? may you not tremble? may they not tremble?
V-ing form
may I not be trembling? may you not be trembling? may she not be trembling? may we not be trembling? may you not be trembling? may they not be trembling?
Perfect
may I not have trembled? may you not have trembled? may she not have trembled? may we not have trembled? may you not have trembled? may they not have trembled?
V-ing perfect
may I not have been trembling? may you not have been trembling? may she not have been trembling? may we not have been trembling? may you not have been trembling? may they not have been trembling?