may backdate
Verbo regular: backdate - backdated- backdated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may backdate
you may backdate
she may backdate
we may backdate
you may backdate
they may backdate 	I may be backdating
you may be backdating
she may be backdating
we may be backdating
you may be backdating
they may be backdating	I may have backdated
you may have backdated
she 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
she may have been backdating
we may have been backdating
you may have been backdating
they may have been backdating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not backdate
you may not backdate
she 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
she may not be backdating
we may not be backdating
you may not be backdating
they may not be backdating	I may not have backdated
you may not have backdated
she 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
she may not have been backdating
we may not have been backdating
you may not have been backdating
they may not have been backdating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I backdate?
may you backdate?
may she backdate?
may we backdate?
may you backdate?
may they backdate? 	may I be backdating?
may you be backdating?
may she be backdating?
may we be backdating?
may you be backdating?
may they be backdating? 	may I have backdated?
may you have backdated?
may she 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 she have been backdating?
may we have been backdating?
may you have been backdating?
may they have been backdating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not backdate?
may you not backdate?
may she 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 she not be backdating?
may we not be backdating?
may you not be backdating?
may they not be backdating? 	may I not have backdated?
may you not have backdated?
may she 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 she not have been backdating?
may we not have been backdating?
may you not have been backdating?
may they not have been backdating?