B. Change the following sentences into positive, negative or interrogatine.1.(+) the seminar will have begun when we arrive.

Kelas: SMP
Pelajaran: English
Kategori: future perfect tense
Pembahasan:

Future perfect tense is used to state the target of certain plan in the future.
Pattern: S + will + have + V3 + complement.
(+) The seminar will have begun when we arrive.
(-) The seminar won't have begun when we arrive.
(?) Will the seminar have begun when we arrive.