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