may pre-empt
Regular verb: pre-empt - pre-empted- pre-empted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may pre-empt
you may pre-empt
he may pre-empt
we may pre-empt
you may pre-empt
they may pre-empt 	I may be pre-empting
you may be pre-empting
he may be pre-empting
we may be pre-empting
you may be pre-empting
they may be pre-empting	I may have pre-empted
you may have pre-empted
he may have pre-empted
we may have pre-empted
you may have pre-empted
they may have pre-empted	I may have been pre-empting
you may have been pre-empting
he may have been pre-empting
we may have been pre-empting
you may have been pre-empting
they may have been pre-empting	

Negation 	
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I may not pre-empt
you may not pre-empt
he may not pre-empt
we may not pre-empt
you may not pre-empt
they may not pre-empt 	I may not be pre-empting
you may not be pre-empting
he may not be pre-empting
we may not be pre-empting
you may not be pre-empting
they may not be pre-empting	I may not have pre-empted
you may not have pre-empted
he may not have pre-empted
we may not have pre-empted
you may not have pre-empted
they may not have pre-empted	I may not have been pre-empting
you may not have been pre-empting
he may not have been pre-empting
we may not have been pre-empting
you may not have been pre-empting
they may not have been pre-empting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I pre-empt?
may you pre-empt?
may he pre-empt?
may we pre-empt?
may you pre-empt?
may they pre-empt? 	may I be pre-empting?
may you be pre-empting?
may he be pre-empting?
may we be pre-empting?
may you be pre-empting?
may they be pre-empting? 	may I have pre-empted?
may you have pre-empted?
may he have pre-empted?
may we have pre-empted?
may you have pre-empted?
may they have pre-empted? 	may I have been pre-empting?
may you have been pre-empting?
may he have been pre-empting?
may we have been pre-empting?
may you have been pre-empting?
may they have been pre-empting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not pre-empt?
may you not pre-empt?
may he not pre-empt?
may we not pre-empt?
may you not pre-empt?
may they not pre-empt? 	may I not be pre-empting?
may you not be pre-empting?
may he not be pre-empting?
may we not be pre-empting?
may you not be pre-empting?
may they not be pre-empting? 	may I not have pre-empted?
may you not have pre-empted?
may he not have pre-empted?
may we not have pre-empted?
may you not have pre-empted?
may they not have pre-empted? 	may I not have been pre-empting?
may you not have been pre-empting?
may he not have been pre-empting?
may we not have been pre-empting?
may you not have been pre-empting?
may they not have been pre-empting?