I may speculate you may speculate he may speculate we may speculate you may speculate they may speculate
V-ing form
I may be speculating you may be speculating he may be speculating we may be speculating you may be speculating they may be speculating
Perfect
I may have speculated you may have speculated he may have speculated we may have speculated you may have speculated they may have speculated
V-ing perfect
I may have been speculating you may have been speculating he may have been speculating we may have been speculating you may have been speculating they may have been speculating
Negation
Simple form
I mayn't speculate you mayn't speculate he mayn't speculate we mayn't speculate you mayn't speculate they mayn't speculate
V-ing form
I mayn't be speculating you mayn't be speculating he mayn't be speculating we mayn't be speculating you mayn't be speculating they mayn't be speculating
Perfect
I mayn't have speculated you mayn't have speculated he mayn't have speculated we mayn't have speculated you mayn't have speculated they mayn't have speculated
V-ing perfect
I mayn't have been speculating you mayn't have been speculating he mayn't have been speculating we mayn't have been speculating you mayn't have been speculating they mayn't have been speculating
Interrogative form
Simple form
may I speculate? may you speculate? may he speculate? may we speculate? may you speculate? may they speculate?
V-ing form
may I be speculating? may you be speculating? may he be speculating? may we be speculating? may you be speculating? may they be speculating?
Perfect
may I have speculated? may you have speculated? may he have speculated? may we have speculated? may you have speculated? may they have speculated?
V-ing perfect
may I have been speculating? may you have been speculating? may he have been speculating? may we have been speculating? may you have been speculating? may they have been speculating?
Interro-negative form
Simple form
mayn't I speculate? mayn't you speculate? mayn't he speculate? mayn't we speculate? mayn't you speculate? mayn't they speculate?
V-ing form
mayn't I be speculating? mayn't you be speculating? mayn't he be speculating? mayn't we be speculating? mayn't you be speculating? mayn't they be speculating?
Perfect
mayn't I have speculated? mayn't you have speculated? mayn't he have speculated? mayn't we have speculated? mayn't you have speculated? mayn't they have speculated?
V-ing perfect
mayn't I have been speculating? mayn't you have been speculating? mayn't he have been speculating? mayn't we have been speculating? mayn't you have been speculating? mayn't they have been speculating?