Breakdown of Eu vă mulțumesc mult, doamnă.
eu
I
mult
a lot
vă
to you (plural / formal) / you (formal/plural, direct object)
doamna
the lady / Mrs.
Questions & Answers about Eu vă mulțumesc mult, doamnă.
Why use the plural pronoun vă if the speaker is talking to just one lady (doamnă)?
In Romanian, the plural form vă is also used as the formal "you" for a single person. Because the speaker is using a polite register to address a doamnă (madam), they must use the formal vă instead of the informal singular te. This matches the polite dumneavoastră form.
Why does vă come before the verb mulțumesc?
In Romanian, object pronouns like vă (you) generally must be placed right before the verb. So the literal word order in this sentence is "I you thank much."
Since mulțumesc already means "I thank", is the word Eu necessary here?
It is not strictly necessary. Because the verb ending already tells us it is "I", subject pronouns like eu are usually dropped. Including it here adds a polite emphasis, often used to return a thanks, as if saying, "I am the one thanking you."
The translation says "very much", so why use mult (much) instead of foarte (very)?