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