Is it optional to use past perfect tense after "After"

Dear teachers,

I am writing a diary, but I am not sure whether I should use past perfect tense or not in the following sentence:

A.1.
I went to visit Japan after I watched a tour program on TV.

Or
should I write this instead:
I went to visit Japan after I had watched a tour program on TV.

Thank you.

Kitty.

Quote:

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Originally Posted by kwfine

Dear teachers,

I am writing a diary, but I am not sure whether I should use past perfect tense or not in the following sentence:

A.1.
I went to visit Japan after I watched a tour program on TV.

Or
should I write this instead:
I went to visit Japan after I had watched a tour program on TV.

Thank you.

Kitty.

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Both are OK. "after watching" is also correct.