払わなくて

not pay

→ 払う
払わ to pay + なく Negative + て Te-form (conjunctive form)
verb · informal Rare #40,459
not pay The negative て-form of 払う; it often appears in expressions such as 払わなくてもいい (not have to pay).
JA: 今日は払わなくていいですよ。
EN: You don't have to pay today.
Conjugation of 払う
Present
払って払わせて払わなくて
Past
Indicative present
Imperative

あなたは昼食代を払わなくてもいいですよ。

You don't have to pay for lunch.

払わなくてほら

You don't have to pay—see?

— タクシー運転手 約束は海を越えて (2017)