"Many young men live in Rome."
Translation:Multi iuvenes Romae habitant.
Iuvenis means young man and sometimes also young woman, regardless of case or declension.
Iuvenis can be masculine or feminine. This course seems so use it exclusively for "young man" though.
Iuvenes is the plural of iuvenis, a noun of the third declension that is both masculine and feminine.
Because iuvenes is plural:
- Iuvenis -> "Young man".
- Iuvenes -> "Young men".
It can refer to a young man or a young woman. Though in practice it is almost always the former.
I went through the earlier skills using the test mode, so I'm not sure if I'm correct, but it looks like the learner is expected to tell the difference between Singular and Plural when faced with a choice between "Multi iuvenes Romae habitant" and "Multi iuvenis Romae habitant" not having been presented with the meaning of "iuvenes" at the earlier stages.
Yes, but if you don't know what the Plural and what the Singular foem of the noun is, you end up with a minimal pair and have to decide on the correct form not knowing that there is an inherent incongruency between "iuvenis" and "habitant"