Je ne pars jamais en vacances sans nettoyer mon appartement.

[paris2020]

English Translation

I never leave on vacation without first cleaning my apartment.

Shouldn’t it be “sans avoir nettoyé” instead of “sans nettoyer” since cleaning comes before leaving?

[yottapolyglot]

“sans avoir nettoyé” definitely works, but so does “sans nettoyer”.

@paris2020

since cleaning comes before leaving?

I understand what you mean, and I think this is implied in the given translation.

tldr: I think both can be used interchangeably in this context.