English verb conjugation
MAY TREMBLE

Regular verb: tremble - trembled - trembled

Affirmation

Simple form	V-ing form
I may tremble you may tremble he may tremble we may tremble you may tremble they may tremble	I may be trembling you may be trembling he may be trembling we may be trembling you may be trembling they may be trembling
Perfect	V-ing perfect
I may have trembled you may have trembled he may have trembled we may have trembled you may have trembled they may have trembled	I may have been trembling you may have been trembling he may have been trembling we may have been trembling you may have been trembling they may have been trembling

Negation

Simple form	V-ing form
I may not tremble you may not tremble he may not tremble we may not tremble you may not tremble they may not tremble	I may not be trembling you may not be trembling he may not be trembling we may not be trembling you may not be trembling they may not be trembling
Perfect	V-ing perfect
I may not have trembled you may not have trembled he may not have trembled we may not have trembled you may not have trembled they may not have trembled	I may not have been trembling you may not have been trembling he 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	V-ing form
may I tremble? may you tremble? may he tremble? may we tremble? may you tremble? may they tremble?	may I be trembling? may you be trembling? may he be trembling? may we be trembling? may you be trembling? may they be trembling?
Perfect	V-ing perfect
may I have trembled? may you have trembled? may he have trembled? may we have trembled? may you have trembled? may they have trembled?	may I have been trembling? may you have been trembling? may he have been trembling? may we have been trembling? may you have been trembling? may they have been trembling?

Interro-negative form

Simple form	V-ing form
may I not tremble? may you not tremble? may he not tremble? may we not tremble? may you not tremble? may they not tremble?	may I not be trembling? may you not be trembling? may he not be trembling? may we not be trembling? may you not be trembling? may they not be trembling?
Perfect	V-ing perfect
may I not have trembled? may you not have trembled? may he not have trembled? may we not have trembled? may you not have trembled? may they not have trembled?	may I not have been trembling? may you not have been trembling? may he not have been trembling? may we not have been trembling? may you not have been trembling? may they not have been trembling?