要下雨了，我敢肯定。

It's going to rain, for sure.

Source: Tatoeba

Sentence Composition

=1 要 yāo (bound form) to demand; to coerce
=1 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
=1 要 yǎo
  1. (archaic) alternative form of 偠 (yǎo)
  2. alternative form of 偠 (yǎo)
  3. used in 要褭／要袅
2 下雨了 xiàyǔle It’s raining.
3 我 wǒ
  1. I
  2. me
  3. my
4 敢 gǎn
  1. to dare
  2. daring
  3. (polite) may I venture
5 肯定 kěndìng
  1. to be certain; to be positive
  2. assuredly; definitely
  3. to give recognition; to affirm
  4. affirmative (answer)