El future perfect continuous se forma con el futuro perfecto del verbo to be + «forma en -ing» del verbo que se conjuga.
Forma afirmativa
Estructura: sujeto + shall/will + have + been + «forma en -ing» del verbo que se conjuga.
Sin contraer Forma contraída
I shall/will have been working
habré estado trabajando you will have been working
etc. I’ll have been working you’ll have been working etc.
Forma negativa
Estructura: sujeto + shall/will + not + have + been + «forma en -ing» del verbo que se conjuga.
Sin contraer Forma contraída
I shall/will not have been working
no habré estado trabajando you will not have been working etc. I shan’t/won’t have been working you won’t have been working etc.
i-orma interrogativa
Estructura: shall/will + not + have + been + «forma en -ing» del verbo que se conjuga
Forma interrogativo-negativa
Estructura: shall/will + sujeto + not + have + been + «forma en -ing» del verbo que se conjuga.
Sin contraer Forma contraída
shall/will I not have been working?
¿no habré estado trabajando?
will you not have been working? etc. shan’t/won’t I have been working? won’t you have been working?
