can't help but [ "~하지 않을 수 없다"]

can't help but

: can't stop from thinking,feeling or doing something

  "~하지 않을 수 없다"

: 'can't help ~ing', 'can't but 동사원형'에 비해 'can't help but 동사원형'의 사용빈도가 가장 높다.

 1. Cathy is only 16 years old, but she wants to get married.

    Although she says she is very much in love,

    I can't help but think that this is a mistake.

 2. I rented a video last night.

    The movie was so sad that I couldn't help but cry.

 [주] 예문1.에서 this is a mistake : she is too young이라는 의미.