English verb conjugation
MAY BACKDATE

Regular verb: backdate - backdated - backdated

Affirmation

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

Negation

Simple form	V-ing form
I may not backdate you may not backdate he may not backdate we may not backdate you may not backdate they may not backdate	I may not be backdating you may not be backdating he may not be backdating we may not be backdating you may not be backdating they may not be backdating
Perfect	V-ing perfect
I may not have backdated you may not have backdated he may not have backdated we may not have backdated you may not have backdated they may not have backdated	I may not have been backdating you may not have been backdating he may not have been backdating we may not have been backdating you may not have been backdating they may not have been backdating

Interrogative form

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

Interro-negative form

Simple form	V-ing form
may I not backdate? may you not backdate? may he not backdate? may we not backdate? may you not backdate? may they not backdate?	may I not be backdating? may you not be backdating? may he not be backdating? may we not be backdating? may you not be backdating? may they not be backdating?
Perfect	V-ing perfect
may I not have backdated? may you not have backdated? may he not have backdated? may we not have backdated? may you not have backdated? may they not have backdated?	may I not have been backdating? may you not have been backdating? may he not have been backdating? may we not have been backdating? may you not have been backdating? may they not have been backdating?