English verb conjugation
MAY BASE

Regular verb: base - based - based

Affirmation

Simple form	V-ing form
I may base you may base she may base we may base you may base they may base	I may be basing you may be basing she may be basing we may be basing you may be basing they may be basing
Perfect	V-ing perfect
I may have based you may have based she may have based we may have based you may have based they may have based	I may have been basing you may have been basing she may have been basing we may have been basing you may have been basing they may have been basing

Negation

Simple form	V-ing form
I mayn't base you mayn't base she mayn't base we mayn't base you mayn't base they mayn't base	I mayn't be basing you mayn't be basing she mayn't be basing we mayn't be basing you mayn't be basing they mayn't be basing
Perfect	V-ing perfect
I mayn't have based you mayn't have based she mayn't have based we mayn't have based you mayn't have based they mayn't have based	I mayn't have been basing you mayn't have been basing she mayn't have been basing we mayn't have been basing you mayn't have been basing they mayn't have been basing

Interrogative form

Simple form	V-ing form
may I base? may you base? may she base? may we base? may you base? may they base?	may I be basing? may you be basing? may she be basing? may we be basing? may you be basing? may they be basing?
Perfect	V-ing perfect
may I have based? may you have based? may she have based? may we have based? may you have based? may they have based?	may I have been basing? may you have been basing? may she have been basing? may we have been basing? may you have been basing? may they have been basing?

Interro-negative form

Simple form	V-ing form
mayn't I base? mayn't you base? mayn't she base? mayn't we base? mayn't you base? mayn't they base?	mayn't I be basing? mayn't you be basing? mayn't she be basing? mayn't we be basing? mayn't you be basing? mayn't they be basing?
Perfect	V-ing perfect
mayn't I have based? mayn't you have based? mayn't she have based? mayn't we have based? mayn't you have based? mayn't they have based?	mayn't I have been basing? mayn't you have been basing? mayn't she have been basing? mayn't we have been basing? mayn't you have been basing? mayn't they have been basing?