Can we use "chłopiec" as a "boyfriend"?
Really really rarely. Maybe if your grandma is talking about her boyfriend back in the day.
Perhaps in a folk song.
Gdybym ja cię miała
Jakiego bym chciała
No...chłopiec is a small boy..child
Can it also mean “a young boy”?
Nope. It's just "new" and it only makes sense in quite limited contexts. The new boy in the school, for example.
Ah, ok, thanks!
The introduction told us that SOME masc. adjective ends in -i and SOME neut. adjectives ends in -ie.
But is was not clear if the change is fixed (i -> ie , y -> e), or if we can encounter irregularities
In nowy do you pronounce the o like "ow" or "oo"
It's a short 'o', so I would say neither of those.
I typed "The new boy" and it told me i was wrong. The correct answer is "The new boy" wth?
Your report says "the new bo". And it actually counts as a typo.