"He is skinny regardless of how much he eats."

Translation: El este slab oricât de mult mănâncă.

[Estel785882]

I got this question as multiple choice, and one of the correct answers was "El este slab oricât de mult ar mânca."

What is the "ar" doing here?

[razvan.marin]

That is equivalent to the English: He is skinny regardless of how much he would eat. In Romanian you are allowed to say it like this.

In other words:

• (eu) aș = I would
• (tu) ai = you (singular) would
• (el/ea) ar = he/she would
• (noi) am = we would
• (voi) ați = you (plural) would
• (ei/ele) ar = they would

[carapetoto]

... oricât de mult [el] mănâncă?

[iiai]

When the sentence is all about him, the second "el" is neither necessary nor useful. This "el" is understood (subînțeles) and it is never used.