"我要为这个面试准备。"

Translation: I need to prepare for this interview.

[AbunPang]

Note that 面试 is the kind of interview you have when applying for something, not an interview by a journalist (that's 访问 fǎngwèn and the corresponding verb "to interview" is 采访 cǎifǎng).

[Hedwigechouette]

"i have to prepare for this interview" was rejected but I think it's ok

[PeaceJoyPancakes]

It's accepted now.

[MichaelLe3139]

Do we really need 为 here?

[juanluisme845441]

Do we really need 为 here?... what is the purpose of this particle in the sentence_