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