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male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation MAY BACKDATE

Regular verb: backdate - backdated - backdated


Affirmation

Simple form
I may backdate
you may backdate
she may backdate
we may backdate
you may backdate
they may backdate
V-ing form
I may be backdating
you may be backdating
she may be backdating
we may be backdating
you may be backdating
they may be backdating
Perfect
I may have backdated
you may have backdated
she may have backdated
we may have backdated
you may have backdated
they may have backdated
V-ing perfect
I may have been backdating
you may have been backdating
she may have been backdating
we may have been backdating
you may have been backdating
they may have been backdating

Negation

Simple form
I mayn't backdate
you mayn't backdate
she mayn't backdate
we mayn't backdate
you mayn't backdate
they mayn't backdate
V-ing form
I mayn't be backdating
you mayn't be backdating
she mayn't be backdating
we mayn't be backdating
you mayn't be backdating
they mayn't be backdating
Perfect
I mayn't have backdated
you mayn't have backdated
she mayn't have backdated
we mayn't have backdated
you mayn't have backdated
they mayn't have backdated
V-ing perfect
I mayn't have been backdating
you mayn't have been backdating
she mayn't have been backdating
we mayn't have been backdating
you mayn't have been backdating
they mayn't have been backdating

Interrogative form

Simple form
may I backdate?
may you backdate?
may she backdate?
may we backdate?
may you backdate?
may they backdate?
V-ing form
may I be backdating?
may you be backdating?
may she be backdating?
may we be backdating?
may you be backdating?
may they be backdating?
Perfect
may I have backdated?
may you have backdated?
may she have backdated?
may we have backdated?
may you have backdated?
may they have backdated?
V-ing perfect
may I have been backdating?
may you have been backdating?
may she have been backdating?
may we have been backdating?
may you have been backdating?
may they have been backdating?

Interro-negative form

Simple form
mayn't I backdate?
mayn't you backdate?
mayn't she backdate?
mayn't we backdate?
mayn't you backdate?
mayn't they backdate?
V-ing form
mayn't I be backdating?
mayn't you be backdating?
mayn't she be backdating?
mayn't we be backdating?
mayn't you be backdating?
mayn't they be backdating?
Perfect
mayn't I have backdated?
mayn't you have backdated?
mayn't she have backdated?
mayn't we have backdated?
mayn't you have backdated?
mayn't they have backdated?
V-ing perfect
mayn't I have been backdating?
mayn't you have been backdating?
mayn't she have been backdating?
mayn't we have been backdating?
mayn't you have been backdating?
mayn't they have been backdating?