may eyewitness
Regular verb: eyewitness - eyewitnessed- eyewitnessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may eyewitness
you may eyewitness
he may eyewitness
we may eyewitness
you may eyewitness
they may eyewitness 	I may be eyewitnessing
you may be eyewitnessing
he may be eyewitnessing
we may be eyewitnessing
you may be eyewitnessing
they may be eyewitnessing	I may have eyewitnessed
you may have eyewitnessed
he may have eyewitnessed
we may have eyewitnessed
you may have eyewitnessed
they may have eyewitnessed	I may have been eyewitnessing
you may have been eyewitnessing
he may have been eyewitnessing
we may have been eyewitnessing
you may have been eyewitnessing
they may have been eyewitnessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't eyewitness
you mayn't eyewitness
he mayn't eyewitness
we mayn't eyewitness
you mayn't eyewitness
they mayn't eyewitness 	I mayn't be eyewitnessing
you mayn't be eyewitnessing
he mayn't be eyewitnessing
we mayn't be eyewitnessing
you mayn't be eyewitnessing
they mayn't be eyewitnessing	I mayn't have eyewitnessed
you mayn't have eyewitnessed
he mayn't have eyewitnessed
we mayn't have eyewitnessed
you mayn't have eyewitnessed
they mayn't have eyewitnessed	I mayn't have been eyewitnessing
you mayn't have been eyewitnessing
he mayn't have been eyewitnessing
we mayn't have been eyewitnessing
you mayn't have been eyewitnessing
they mayn't have been eyewitnessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I eyewitness?
may you eyewitness?
may he eyewitness?
may we eyewitness?
may you eyewitness?
may they eyewitness? 	may I be eyewitnessing?
may you be eyewitnessing?
may he be eyewitnessing?
may we be eyewitnessing?
may you be eyewitnessing?
may they be eyewitnessing? 	may I have eyewitnessed?
may you have eyewitnessed?
may he have eyewitnessed?
may we have eyewitnessed?
may you have eyewitnessed?
may they have eyewitnessed? 	may I have been eyewitnessing?
may you have been eyewitnessing?
may he have been eyewitnessing?
may we have been eyewitnessing?
may you have been eyewitnessing?
may they have been eyewitnessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I eyewitness?
mayn't you eyewitness?
mayn't he eyewitness?
mayn't we eyewitness?
mayn't you eyewitness?
mayn't they eyewitness? 	mayn't I be eyewitnessing?
mayn't you be eyewitnessing?
mayn't he be eyewitnessing?
mayn't we be eyewitnessing?
mayn't you be eyewitnessing?
mayn't they be eyewitnessing? 	mayn't I have eyewitnessed?
mayn't you have eyewitnessed?
mayn't he have eyewitnessed?
mayn't we have eyewitnessed?
mayn't you have eyewitnessed?
mayn't they have eyewitnessed? 	mayn't I have been eyewitnessing?
mayn't you have been eyewitnessing?
mayn't he have been eyewitnessing?
mayn't we have been eyewitnessing?
mayn't you have been eyewitnessing?
mayn't they have been eyewitnessing?