vous ne nous offrez rien. = you don't offer us anything.
ne can be used with other words to show negation, not only with pas
ne ... plus = no more / not any more
Je n'ai plus d'argent. = i don't have any more money.
ne ... jamais = never
Je ne comprends jamais. = i never understand.
I just wanted to remind people that the infinitive is offrir, but it is conjugated like an -er verb, not an -ir verb. (j'offre, tu offres , il/elle/on offre, nous offrons, vous offrez, ils/elles offrent) Rather than like the verb finir (je finis, tu finis, il/elle/on finit, nous finissons, vous finissez, ils/elles finissent), it is conjugated similar to parler (je parle, tu parles, il/elle/on parle, nous parlons, vous parlez, ils/elles parlent). I know this sometimes isn't particularly evident in Duolingo, given that Duo doesn't make it clear what the infinitive is of a verb, it just gives you a sentence with the verb already conjugated, so it may be hard to tell.