may label
Regular verb: label - labelled- labelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may label
you may label
she may label
we may label
you may label
they may label 	I may be labelling
you may be labelling
she may be labelling
we may be labelling
you may be labelling
they may be labelling	I may have labelled
you may have labelled
she may have labelled
we may have labelled
you may have labelled
they may have labelled	I may have been labelling
you may have been labelling
she may have been labelling
we may have been labelling
you may have been labelling
they may have been labelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not label
you may not label
she may not label
we may not label
you may not label
they may not label 	I may not be labelling
you may not be labelling
she may not be labelling
we may not be labelling
you may not be labelling
they may not be labelling	I may not have labelled
you may not have labelled
she may not have labelled
we may not have labelled
you may not have labelled
they may not have labelled	I may not have been labelling
you may not have been labelling
she may not have been labelling
we may not have been labelling
you may not have been labelling
they may not have been labelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I label?
may you label?
may she label?
may we label?
may you label?
may they label? 	may I be labelling?
may you be labelling?
may she be labelling?
may we be labelling?
may you be labelling?
may they be labelling? 	may I have labelled?
may you have labelled?
may she have labelled?
may we have labelled?
may you have labelled?
may they have labelled? 	may I have been labelling?
may you have been labelling?
may she have been labelling?
may we have been labelling?
may you have been labelling?
may they have been labelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not label?
may you not label?
may she not label?
may we not label?
may you not label?
may they not label? 	may I not be labelling?
may you not be labelling?
may she not be labelling?
may we not be labelling?
may you not be labelling?
may they not be labelling? 	may I not have labelled?
may you not have labelled?
may she not have labelled?
may we not have labelled?
may you not have labelled?
may they not have labelled? 	may I not have been labelling?
may you not have been labelling?
may she not have been labelling?
may we not have been labelling?
may you not have been labelling?
may they not have been labelling?