Student or Learner
- She (return) will have returned/'ll have returned from the excursion by 6 o'clock.
- She (return) will has returned from the excursion by 6 o'clock.
My answer is the second one. I thought my answer should be corrected because "she" should use "has" but not "have". Can anyone explains it? Thanks in advances.
After modal verbs, including will, use a bare infinitive, so there's no -s form for the third person singular- I/you/he/she/it/we/they will have.
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