Conjugación del verbo inglés
MAY REF

Verbo regular: ref - refed - refed

Afirmación

Forma simple	Forma con V-ing
I may ref you may ref he may ref we may ref you may ref they may ref	I may be refing you may be refing he may be refing we may be refing you may be refing they may be refing
Perfecto	Perfecto con V-ing
I may have refed you may have refed he may have refed we may have refed you may have refed they may have refed	I may have been refing you may have been refing he may have been refing we may have been refing you may have been refing they may have been refing

Negación

Forma simple	Forma con V-ing
I may not ref you may not ref he may not ref we may not ref you may not ref they may not ref	I may not be refing you may not be refing he may not be refing we may not be refing you may not be refing they may not be refing
Perfecto	Perfecto con V-ing
I may not have refed you may not have refed he may not have refed we may not have refed you may not have refed they may not have refed	I may not have been refing you may not have been refing he may not have been refing we may not have been refing you may not have been refing they may not have been refing

Forma interrogativa

Forma simple	Forma con V-ing
may I ref? may you ref? may he ref? may we ref? may you ref? may they ref?	may I be refing? may you be refing? may he be refing? may we be refing? may you be refing? may they be refing?
Perfecto	Perfecto con V-ing
may I have refed? may you have refed? may he have refed? may we have refed? may you have refed? may they have refed?	may I have been refing? may you have been refing? may he have been refing? may we have been refing? may you have been refing? may they have been refing?

Forma interro-negativa

Forma simple	Forma con V-ing
may I not ref? may you not ref? may he not ref? may we not ref? may you not ref? may they not ref?	may I not be refing? may you not be refing? may he not be refing? may we not be refing? may you not be refing? may they not be refing?
Perfecto	Perfecto con V-ing
may I not have refed? may you not have refed? may he not have refed? may we not have refed? may you not have refed? may they not have refed?	may I not have been refing? may you not have been refing? may he not have been refing? may we not have been refing? may you not have been refing? may they not have been refing?