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