ではいられない
(Deha i rare nai)
can't help doing / can't stop oneself from (casual variant).
Connection rules
- +V ない-form + ではいられない.
- +Casual / neutral equivalent of 〜ずにはいられない.
- +Uses the everyday ない-form rather than the formal ずに.
Examples
1.
面白くて笑わないではいられなかった。

Omoshiroku te warawa nai de wa i rare naka ta.
It was funny — I couldn't help but laugh.
「can't help doing / can't stop oneself from (casual variant)」
2.
彼女の話を聞いて泣かないではいられなかった。

Kanojo no hanashi o kii te naka nai de wa i rare naka ta.
Hearing her story, I couldn't help but cry.
「can't help doing / can't stop oneself from (casual variant)」
Practice
The movie was so moving that I couldn't help but cry.
映画がとても感動的で、___。
Romaji also accepted