may countermine
Regular verb: countermine - countermined- countermined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may countermine
you may countermine
he may countermine
we may countermine
you may countermine
they may countermine 	I may be countermining
you may be countermining
he may be countermining
we may be countermining
you may be countermining
they may be countermining	I may have countermined
you may have countermined
he may have countermined
we may have countermined
you may have countermined
they may have countermined	I may have been countermining
you may have been countermining
he may have been countermining
we may have been countermining
you may have been countermining
they may have been countermining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not countermine
you may not countermine
he may not countermine
we may not countermine
you may not countermine
they may not countermine 	I may not be countermining
you may not be countermining
he may not be countermining
we may not be countermining
you may not be countermining
they may not be countermining	I may not have countermined
you may not have countermined
he may not have countermined
we may not have countermined
you may not have countermined
they may not have countermined	I may not have been countermining
you may not have been countermining
he may not have been countermining
we may not have been countermining
you may not have been countermining
they may not have been countermining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I countermine?
may you countermine?
may he countermine?
may we countermine?
may you countermine?
may they countermine? 	may I be countermining?
may you be countermining?
may he be countermining?
may we be countermining?
may you be countermining?
may they be countermining? 	may I have countermined?
may you have countermined?
may he have countermined?
may we have countermined?
may you have countermined?
may they have countermined? 	may I have been countermining?
may you have been countermining?
may he have been countermining?
may we have been countermining?
may you have been countermining?
may they have been countermining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not countermine?
may you not countermine?
may he not countermine?
may we not countermine?
may you not countermine?
may they not countermine? 	may I not be countermining?
may you not be countermining?
may he not be countermining?
may we not be countermining?
may you not be countermining?
may they not be countermining? 	may I not have countermined?
may you not have countermined?
may he not have countermined?
may we not have countermined?
may you not have countermined?
may they not have countermined? 	may I not have been countermining?
may you not have been countermining?
may he not have been countermining?
may we not have been countermining?
may you not have been countermining?
may they not have been countermining?