He ______ French by next year.
He ______ French by next year.
Explanation
The sentence uses "by next year" — a future time marker, so Future Perfect Tense is correct.
"Will have learned" fits the structure: Subject + will have + past participle.
The sentence uses "by next year" — a future time marker, so Future Perfect Tense is correct.
"Will have learned" fits the structure: Subject + will have + past participle.