wǒ xiāngxìn nǐ huì chénggōng.

I believe you will succeed.

Breakdown of wǒ xiāngxìn nǐ huì chénggōng.

• 我wǒ: I
• 你nǐ: you
• 会huì: will
• 相信xiāngxìn: to believe

Questions & Answers about wǒ xiāngxìn nǐ huì chénggōng.

Why is 会 (huì) used here? Is it like “will” in English?

会 here mainly marks a future likelihood or expected result, similar to English “will” or “be going to”.
It implies: given what I know now, I expect you to succeed.
Besides future, 会 can also mean “to be able to (learned skill)”, but in this sentence it’s the future meaning.

Can I omit 会 and just say 我相信你成功?

You normally cannot say 我相信你成功 in this context; it sounds incomplete or wrong.
To talk about a future result, you need something like:

• 我相信你会成功。 – I believe you will succeed.
• 我相信你一定会成功。 – I believe you will definitely succeed.

Without 会 (or another marker like 一定, 能够, etc.), the sentence doesn’t sound natural for this meaning.

Is 成功 (chénggōng) a verb or a noun here?

In this sentence, 成功 functions as a verb meaning “to succeed”.
So the basic structure is:

• 我 (subject) – 相信 (verb) – 你会成功 (object clause “that you will succeed”).

成功 can also be a noun (“success”), but here it’s used as “to succeed”, not “success” as a thing.

Why is there no word like (as in “to succeed”) in Chinese?