may decalcify
Regular verb: decalcify - decalcified- decalcified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may decalcify
you may decalcify
he may decalcify
we may decalcify
you may decalcify
they may decalcify 	I may be decalcifying
you may be decalcifying
he may be decalcifying
we may be decalcifying
you may be decalcifying
they may be decalcifying	I may have decalcified
you may have decalcified
he may have decalcified
we may have decalcified
you may have decalcified
they may have decalcified	I may have been decalcifying
you may have been decalcifying
he may have been decalcifying
we may have been decalcifying
you may have been decalcifying
they may have been decalcifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not decalcify
you may not decalcify
he may not decalcify
we may not decalcify
you may not decalcify
they may not decalcify 	I may not be decalcifying
you may not be decalcifying
he may not be decalcifying
we may not be decalcifying
you may not be decalcifying
they may not be decalcifying	I may not have decalcified
you may not have decalcified
he may not have decalcified
we may not have decalcified
you may not have decalcified
they may not have decalcified	I may not have been decalcifying
you may not have been decalcifying
he may not have been decalcifying
we may not have been decalcifying
you may not have been decalcifying
they may not have been decalcifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I decalcify?
may you decalcify?
may he decalcify?
may we decalcify?
may you decalcify?
may they decalcify? 	may I be decalcifying?
may you be decalcifying?
may he be decalcifying?
may we be decalcifying?
may you be decalcifying?
may they be decalcifying? 	may I have decalcified?
may you have decalcified?
may he have decalcified?
may we have decalcified?
may you have decalcified?
may they have decalcified? 	may I have been decalcifying?
may you have been decalcifying?
may he have been decalcifying?
may we have been decalcifying?
may you have been decalcifying?
may they have been decalcifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not decalcify?
may you not decalcify?
may he not decalcify?
may we not decalcify?
may you not decalcify?
may they not decalcify? 	may I not be decalcifying?
may you not be decalcifying?
may he not be decalcifying?
may we not be decalcifying?
may you not be decalcifying?
may they not be decalcifying? 	may I not have decalcified?
may you not have decalcified?
may he not have decalcified?
may we not have decalcified?
may you not have decalcified?
may they not have decalcified? 	may I not have been decalcifying?
may you not have been decalcifying?
may he not have been decalcifying?
may we not have been decalcifying?
may you not have been decalcifying?
may they not have been decalcifying?