Often used words:

Yes: Sí [sea]
No: No [no]
Hello/Good day: Buongiorno [bon-jour-no]
Hello(Formal): Salve [sal-ve]
Hello Informal: Ciao [chow-o]
Good Evening: Bouna sera [bow-na-serr-a]
Good Night: Bouna notte [bow-na-not-te]
Good-Bye(Formal): Arrivederci [ar-ree-ve-der-shi]
See you later: A piú tardi [ap-you-tarr-di]

Sorry: Scusi [S-coo-zi]
Excuse me: Permesso [per-me-sso]
It doesnt matter: Non importa [noon-import-a]
See you soon: A presto [a-pres-to]
I'm Sorry: Mi dispiace [me-diss-pya-che]
I don't speak English: Non parlo inglese [noon-par-low-inn-gleze]
I don't speak Italian: Non parlo italiano [noon-par-low-ee-tal-ya-no]
I understand a little: Capisco un pò [cap-ees-co-oun-po]

You're Welcome: Prego (Pre-go)
Lets go!: Andiamo! (Un-Dia-Mo)
What is your name?: Come si chiama? (Co-meh-see-kya-ma)
My name is...: Mi chiamo...(me-kya-mo)
Mister: Signore (Sin-yo-re)
Misses: Signora (Sin-yo-ra)
Miss: Signorina (Sin-yo-ree-na)
Where are you from?: Di dov'e(Dee-dough-ve)
I am fine: Sto Bene (Stow-ben-e)
I dont know: Non so (noon-so)
I know: Lo so (low-so)
How old are you?: Quanti anni ha? (quant-ee-ya-nee-yah)
I love you:Ti amo (Tee-ammo)
Where is the bathroom?: Dov'e la toletta (Dough-ve-la-tow-let-a)