Which sentence uses the present perfect in an adverbial clause ...

★ Grammar of Future Plans

Which sentence uses the present perfect in an adverbial clause correctly?

A. When I will have finished my homework, I’ll watch TV.

B. When I have finished my homework, I’ll watch TV.

C. When I finished my homework, I’ll watch TV.

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Choose the correct sentence using the perfect form of an infinitive to express a future action.

A. By this time next year, I plan to have save up enough money.

B. By this time next year, I plan to have saved up enough money.

C. By this time next year, I plan to have saving up enough money.