我很孤單。

I'm lonely.

I feel lonely.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 很 hěn
  1. very; quite
  2. (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)
3 孤單 gūdān
  1. lone
  2. lonely
  3. loneliness