may forewarn
Regular verb: forewarn - forewarned- forewarned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may forewarn
you may forewarn
he may forewarn
we may forewarn
you may forewarn
they may forewarn 	I may be forewarning
you may be forewarning
he may be forewarning
we may be forewarning
you may be forewarning
they may be forewarning	I may have forewarned
you may have forewarned
he may have forewarned
we may have forewarned
you may have forewarned
they may have forewarned	I may have been forewarning
you may have been forewarning
he may have been forewarning
we may have been forewarning
you may have been forewarning
they may have been forewarning	

Negation 	
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I may not forewarn
you may not forewarn
he may not forewarn
we may not forewarn
you may not forewarn
they may not forewarn 	I may not be forewarning
you may not be forewarning
he may not be forewarning
we may not be forewarning
you may not be forewarning
they may not be forewarning	I may not have forewarned
you may not have forewarned
he may not have forewarned
we may not have forewarned
you may not have forewarned
they may not have forewarned	I may not have been forewarning
you may not have been forewarning
he may not have been forewarning
we may not have been forewarning
you may not have been forewarning
they may not have been forewarning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I forewarn?
may you forewarn?
may he forewarn?
may we forewarn?
may you forewarn?
may they forewarn? 	may I be forewarning?
may you be forewarning?
may he be forewarning?
may we be forewarning?
may you be forewarning?
may they be forewarning? 	may I have forewarned?
may you have forewarned?
may he have forewarned?
may we have forewarned?
may you have forewarned?
may they have forewarned? 	may I have been forewarning?
may you have been forewarning?
may he have been forewarning?
may we have been forewarning?
may you have been forewarning?
may they have been forewarning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not forewarn?
may you not forewarn?
may he not forewarn?
may we not forewarn?
may you not forewarn?
may they not forewarn? 	may I not be forewarning?
may you not be forewarning?
may he not be forewarning?
may we not be forewarning?
may you not be forewarning?
may they not be forewarning? 	may I not have forewarned?
may you not have forewarned?
may he not have forewarned?
may we not have forewarned?
may you not have forewarned?
may they not have forewarned? 	may I not have been forewarning?
may you not have been forewarning?
may he not have been forewarning?
may we not have been forewarning?
may you not have been forewarning?
may they not have been forewarning?