English verb conjugation
MAY UMPIRE

Regular verb: umpire - umpired - umpired

Affirmation

Simple form	V-ing form
I may umpire you may umpire he may umpire we may umpire you may umpire they may umpire	I may be umpiring you may be umpiring he may be umpiring we may be umpiring you may be umpiring they may be umpiring
Perfect	V-ing perfect
I may have umpired you may have umpired he may have umpired we may have umpired you may have umpired they may have umpired	I may have been umpiring you may have been umpiring he may have been umpiring we may have been umpiring you may have been umpiring they may have been umpiring

Negation

Simple form	V-ing form
I mayn't umpire you mayn't umpire he mayn't umpire we mayn't umpire you mayn't umpire they mayn't umpire	I mayn't be umpiring you mayn't be umpiring he mayn't be umpiring we mayn't be umpiring you mayn't be umpiring they mayn't be umpiring
Perfect	V-ing perfect
I mayn't have umpired you mayn't have umpired he mayn't have umpired we mayn't have umpired you mayn't have umpired they mayn't have umpired	I mayn't have been umpiring you mayn't have been umpiring he mayn't have been umpiring we mayn't have been umpiring you mayn't have been umpiring they mayn't have been umpiring

Interrogative form

Simple form	V-ing form
may I umpire? may you umpire? may he umpire? may we umpire? may you umpire? may they umpire?	may I be umpiring? may you be umpiring? may he be umpiring? may we be umpiring? may you be umpiring? may they be umpiring?
Perfect	V-ing perfect
may I have umpired? may you have umpired? may he have umpired? may we have umpired? may you have umpired? may they have umpired?	may I have been umpiring? may you have been umpiring? may he have been umpiring? may we have been umpiring? may you have been umpiring? may they have been umpiring?

Interro-negative form

Simple form	V-ing form
mayn't I umpire? mayn't you umpire? mayn't he umpire? mayn't we umpire? mayn't you umpire? mayn't they umpire?	mayn't I be umpiring? mayn't you be umpiring? mayn't he be umpiring? mayn't we be umpiring? mayn't you be umpiring? mayn't they be umpiring?
Perfect	V-ing perfect
mayn't I have umpired? mayn't you have umpired? mayn't he have umpired? mayn't we have umpired? mayn't you have umpired? mayn't they have umpired?	mayn't I have been umpiring? mayn't you have been umpiring? mayn't he have been umpiring? mayn't we have been umpiring? mayn't you have been umpiring? mayn't they have been umpiring?