may research
Regular verb: research - researched- researched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may research
you may research
she may research
we may research
you may research
they may research 	I may be researching
you may be researching
she may be researching
we may be researching
you may be researching
they may be researching	I may have researched
you may have researched
she may have researched
we may have researched
you may have researched
they may have researched	I may have been researching
you may have been researching
she may have been researching
we may have been researching
you may have been researching
they may have been researching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't research
you mayn't research
she mayn't research
we mayn't research
you mayn't research
they mayn't research 	I mayn't be researching
you mayn't be researching
she mayn't be researching
we mayn't be researching
you mayn't be researching
they mayn't be researching	I mayn't have researched
you mayn't have researched
she mayn't have researched
we mayn't have researched
you mayn't have researched
they mayn't have researched	I mayn't have been researching
you mayn't have been researching
she mayn't have been researching
we mayn't have been researching
you mayn't have been researching
they mayn't have been researching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I research?
may you research?
may she research?
may we research?
may you research?
may they research? 	may I be researching?
may you be researching?
may she be researching?
may we be researching?
may you be researching?
may they be researching? 	may I have researched?
may you have researched?
may she have researched?
may we have researched?
may you have researched?
may they have researched? 	may I have been researching?
may you have been researching?
may she have been researching?
may we have been researching?
may you have been researching?
may they have been researching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I research?
mayn't you research?
mayn't she research?
mayn't we research?
mayn't you research?
mayn't they research? 	mayn't I be researching?
mayn't you be researching?
mayn't she be researching?
mayn't we be researching?
mayn't you be researching?
mayn't they be researching? 	mayn't I have researched?
mayn't you have researched?
mayn't she have researched?
mayn't we have researched?
mayn't you have researched?
mayn't they have researched? 	mayn't I have been researching?
mayn't you have been researching?
mayn't she have been researching?
mayn't we have been researching?
mayn't you have been researching?
mayn't they have been researching?