"Our last name is Wang."

Translation: 我们姓王。

[unexpectedname]

I take it that 们 is a plural marker and 我 is first person, right?

[devi.]

Yes, it is.

[Kal-in]

Yes, but only for titles, occupations and pronouns, other words don't really come in plural form.

[MrRoger24]

Wouldnt it be more correct to add 的 after 我们？

[MauroEzequ6]

It's nearly the same, 我的will make 姓a noun, and 我姓will make 姓a verb. My surname is... And I'm "surnamed "... Which is more used :)

[angel_campoverde]

So if we use 的, 姓 is not a verb anymore, then there is no verb in the sentence and you would need 是? i.e. the sentence with 的 would be?

我们的姓是王

or can you make a sentence without a verb in Chinese?

[TerminasDeity]

shì isn't really a verb, more of a confirmation while bù is the negation, like zài is no verb per se. Thus your sentence indeed does not contain a verb per se. Our ([pro-]noun) surname (noun) is (not really a verb) Wáng (noun).

[Kal-in]

姓 is a verb in these sentences.

[linda261317]

At times 的 is omitted when there is a close association

[devi.]

Wouldn't it make more sense to be "Our last names are Wang."?

[circumbendibus]

I think the sentence is about a family, so it's one shared name. But you could be right if they are from different families (it's a very common name).

[Jaakthecutestdog]

no that implies that you have multiple last names

[ismatulima]

I am right!!!!!

[BobMason2]

Shouldn't be 我们的 ？