A.
Affirmative: Subject
+ will/shall +have+been + ing with 1st form of Verb + object +
since/for + time. B.
Negative: Subject+will/shall+have+
not +been+ing with 1st form of Verb+ object + since/for + time. C.
Interrogative: Will/Shall
+subject + have+been + ing with 1st form of Verb + object +
since/for + time? |
Condition involving this tense:-
1. It signifies an event which may happen in future:
a. We shall have been waiting for you tomorrow at
8 A.M.
b. The Gardner shall have been planting flowers
before you reach there.
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