may retrace
Verbo regular: retrace - retraced- retraced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may retrace
you may retrace
he may retrace
we may retrace
you may retrace
they may retrace 	I may be retracing
you may be retracing
he may be retracing
we may be retracing
you may be retracing
they may be retracing	I may have retraced
you may have retraced
he may have retraced
we may have retraced
you may have retraced
they may have retraced	I may have been retracing
you may have been retracing
he may have been retracing
we may have been retracing
you may have been retracing
they may have been retracing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't retrace
you mayn't retrace
he mayn't retrace
we mayn't retrace
you mayn't retrace
they mayn't retrace 	I mayn't be retracing
you mayn't be retracing
he mayn't be retracing
we mayn't be retracing
you mayn't be retracing
they mayn't be retracing	I mayn't have retraced
you mayn't have retraced
he mayn't have retraced
we mayn't have retraced
you mayn't have retraced
they mayn't have retraced	I mayn't have been retracing
you mayn't have been retracing
he mayn't have been retracing
we mayn't have been retracing
you mayn't have been retracing
they mayn't have been retracing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I retrace?
may you retrace?
may he retrace?
may we retrace?
may you retrace?
may they retrace? 	may I be retracing?
may you be retracing?
may he be retracing?
may we be retracing?
may you be retracing?
may they be retracing? 	may I have retraced?
may you have retraced?
may he have retraced?
may we have retraced?
may you have retraced?
may they have retraced? 	may I have been retracing?
may you have been retracing?
may he have been retracing?
may we have been retracing?
may you have been retracing?
may they have been retracing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I retrace?
mayn't you retrace?
mayn't he retrace?
mayn't we retrace?
mayn't you retrace?
mayn't they retrace? 	mayn't I be retracing?
mayn't you be retracing?
mayn't he be retracing?
mayn't we be retracing?
mayn't you be retracing?
mayn't they be retracing? 	mayn't I have retraced?
mayn't you have retraced?
mayn't he have retraced?
mayn't we have retraced?
mayn't you have retraced?
mayn't they have retraced? 	mayn't I have been retracing?
mayn't you have been retracing?
mayn't he have been retracing?
mayn't we have been retracing?
mayn't you have been retracing?
mayn't they have been retracing?