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