"My shirts are white."
Translation:Le mie camicie sono bianche.
Masc. Singular -> -o Masc. Plural -> -i
Fem. Singular -> -a Fem. Plural -> -e
For example: [Masculine nouns] Uomo = Man Uomini = Men (Notice that the singular ends in "o," and the plural ends in "i.")
For example: [Feminine nouns] Donna = Woman Donne = Women (Notice that the singular ends in "a," and the plural ends in "e.")
Since the word SHIRT is CAMICIA in Italian (meaning "shirt" is a singular feminine noun,) the plural form will always and forever be CAMICIE.
Now, WHITE is one of the colors (like RED,) that will change form to agree with whatever it is describing.
For example: [Colors that change] Orologio rosso = Red watch Pantaloni rossi = Red pants (Notice that the ending of the word for RED in Italian will change depending on gender and amount.) - It is the same with white.
On the other hand, there are also colors that will not change to agree (for reasons unknown to me, but definitely available under a proper search.)
For example: [Colors that don't change] Portafolgio verde = Green wallet Elefanti verde = Green elephants (Notice that the ending of the word for GREEN in Italian will not change depending on gender or amount.) - It is the same with pink.
**Hope this helps
check this link for forming plural adjectives exceptions: http://italian.about.com/library/fare/blfare128b.htm
La mia camicia è bianca / Le mie cimicie sono bianche
There is overlap so i thought seeing some related words might help.
Camicia (camicie) - shirt, top Comicetta - blouse (loose and usually gathered at the waist, usually for women and pirates) Comicia con colletto - collared shirt (dress shirt) Camicia di lana - a wool shirt
Maglia - jersey, sweater, or vest Maglia di lana - wool sweater Maglione - sweater, usually knit and long sleeve Maglietta - undershirt, t-shirt Maglietta da tennis - a tennis shirt
Felpa - sweatshirt Felpa con cappuccio - hoodie, hooded sweatshirt
And don't forget your coat and jacket! cappotto e giacca.
Hope it helps.