may substantiate
Verbo regular: substantiate - substantiated- substantiated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may substantiate
you may substantiate
she may substantiate
we may substantiate
you may substantiate
they may substantiate 	I may be substantiating
you may be substantiating
she may be substantiating
we may be substantiating
you may be substantiating
they may be substantiating	I may have substantiated
you may have substantiated
she may have substantiated
we may have substantiated
you may have substantiated
they may have substantiated	I may have been substantiating
you may have been substantiating
she may have been substantiating
we may have been substantiating
you may have been substantiating
they may have been substantiating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not substantiate
you may not substantiate
she may not substantiate
we may not substantiate
you may not substantiate
they may not substantiate 	I may not be substantiating
you may not be substantiating
she may not be substantiating
we may not be substantiating
you may not be substantiating
they may not be substantiating	I may not have substantiated
you may not have substantiated
she may not have substantiated
we may not have substantiated
you may not have substantiated
they may not have substantiated	I may not have been substantiating
you may not have been substantiating
she may not have been substantiating
we may not have been substantiating
you may not have been substantiating
they may not have been substantiating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I substantiate?
may you substantiate?
may she substantiate?
may we substantiate?
may you substantiate?
may they substantiate? 	may I be substantiating?
may you be substantiating?
may she be substantiating?
may we be substantiating?
may you be substantiating?
may they be substantiating? 	may I have substantiated?
may you have substantiated?
may she have substantiated?
may we have substantiated?
may you have substantiated?
may they have substantiated? 	may I have been substantiating?
may you have been substantiating?
may she have been substantiating?
may we have been substantiating?
may you have been substantiating?
may they have been substantiating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not substantiate?
may you not substantiate?
may she not substantiate?
may we not substantiate?
may you not substantiate?
may they not substantiate? 	may I not be substantiating?
may you not be substantiating?
may she not be substantiating?
may we not be substantiating?
may you not be substantiating?
may they not be substantiating? 	may I not have substantiated?
may you not have substantiated?
may she not have substantiated?
may we not have substantiated?
may you not have substantiated?
may they not have substantiated? 	may I not have been substantiating?
may you not have been substantiating?
may she not have been substantiating?
may we not have been substantiating?
may you not have been substantiating?
may they not have been substantiating?