I may marble you may marble he may marble we may marble you may marble they may marble
V-ing form
I may be marbling you may be marbling he may be marbling we may be marbling you may be marbling they may be marbling
Perfect
I may have marbled you may have marbled he may have marbled we may have marbled you may have marbled they may have marbled
V-ing perfect
I may have been marbling you may have been marbling he may have been marbling we may have been marbling you may have been marbling they may have been marbling
Negation
Simple form
I may not marble you may not marble he may not marble we may not marble you may not marble they may not marble
V-ing form
I may not be marbling you may not be marbling he may not be marbling we may not be marbling you may not be marbling they may not be marbling
Perfect
I may not have marbled you may not have marbled he may not have marbled we may not have marbled you may not have marbled they may not have marbled
V-ing perfect
I may not have been marbling you may not have been marbling he may not have been marbling we may not have been marbling you may not have been marbling they may not have been marbling
Interrogative form
Simple form
may I marble? may you marble? may he marble? may we marble? may you marble? may they marble?
V-ing form
may I be marbling? may you be marbling? may he be marbling? may we be marbling? may you be marbling? may they be marbling?
Perfect
may I have marbled? may you have marbled? may he have marbled? may we have marbled? may you have marbled? may they have marbled?
V-ing perfect
may I have been marbling? may you have been marbling? may he have been marbling? may we have been marbling? may you have been marbling? may they have been marbling?
Interro-negative form
Simple form
may I not marble? may you not marble? may he not marble? may we not marble? may you not marble? may they not marble?
V-ing form
may I not be marbling? may you not be marbling? may he not be marbling? may we not be marbling? may you not be marbling? may they not be marbling?
Perfect
may I not have marbled? may you not have marbled? may he not have marbled? may we not have marbled? may you not have marbled? may they not have marbled?
V-ing perfect
may I not have been marbling? may you not have been marbling? may he not have been marbling? may we not have been marbling? may you not have been marbling? may they not have been marbling?