In a previous lesson, and in Daniela's video lesson, we talked about aggettivi positivi, meaning those adjectives that end in o and change their endings according to gender and number. An example of this kind of adjective is grosso (big).
Mio padre è un uomo grosso (my father is a big man).
La casa di mia zia è grossa (my aunt's house is big).
Questi due alberi sono grossi (these two trees are big).
Quelle melanzane sono grosse (those eggplants are big).
If you've gotten the hang of positive adjectives, you might instinctively put an e ending on the adjective when you're talking about a feminine noun in the plural.
Quelle donne sono belle (those women are beautiful).
The other kind of adjective, called an aggettivo neutro, ends in e. In the singular, it stays the same, ending in e regardless of whether the noun it modifies is masculine or feminine.
E... mi ha reso una donna forte, una donna indipendente, autonoma.
And... she made me a strong woman, an independent woman, free.
Caption 69, Essere... madrePlay Caption
If we put this sentence in the masculine the adjective stays the same:
Mi ha reso un uomo forte...
She made me a strong man...
But what about the plural? The adjective forte (strong) already ends in e, so what do we do? The answer is that in the plural, regardless of whether it's masculine or feminine, the e changes to an i.
This is easy in a way—only two different endings to think about instead of four—but it's not always so easy to remember, and may come less naturally. In the following example, maniera (way, manner) is a feminine noun. The plural article le helps us discover that. We form the plural of the noun by changing the a to e, and since the singular adjective ends in e, we change it to i in the plural. So far so good.
Però, oh, con voi ci vogliono le maniere forti, sennò non capite.
But, oh, with you strong measures are needed, otherwise you don't get it.Play Caption
Attenzione però (and here's where the adjectives misbehave), because a feminine noun may also end in e. In this case, the plural of the noun ends in i, and a neutral adjective will also end in i. If you don't happen to know the gender of corrente (current) in the following example, the plural noun and plural adjective may lead you to believe that it's masculine.
L'incontro tra i due mari produce infatti forti correnti.
The meeting of the two seas produces, in fact, strong currents.
Caption 31, Linea Blu - Sicilia - Part 2Play Caption
Fortunately, in the next example, the speaker uses the article!
In questo tratto di mare numerosi infatti erano gli affondamenti nel passato, a causa delle forti correnti che si scontrano con violenza.
In this stretch of sea, there were numerous shipwrecks in the past, because of the strong currents that collide violently.
Captions 35-36, Linea Blu - Sicilia - Part 5Play Caption
Here, we've learned from the feminine plural ending of delle (of the), that corrente is a feminine noun, but who knew?
One more reason to learn the article along with the noun!
See these Yabla videos for more about nouns: their genders and their plurals.