Learn Romanian: Domnul ne ajută cu proiectul. - The gentleman helps us with the project.

Dumneavoastră is used when speaking directly to someone (the formal "you"). Here, we are talking about someone respectfully. Using domnul (the gentleman) instead of just el (he) is a common way to show respect to a third person. Because it acts as "he", the verb ajută (helps) takes the standard he/she form.

Why is the word for "us" (ne) placed before the verb?

In Romanian, short object pronouns like ne almost always jump right in front of the verb. So, instead of saying "helps us" like in English, Romanian builds the sentence as "us helps" (ne ajută).

Both domnul and proiectul end in -ul. What does this ending do?

That -ul at the end is the Romanian way of saying "the" for masculine and neuter words! Unlike English, Romanian attaches the word for "the" directly to the end of the noun. Domn means "gentleman", so domnul is "the gentleman". Similarly, proiect becomes proiectul (the project).