Me gustaría tener

Vorrei dire: italiano usa quasi mai dei pronomi personali soggetto: io, tu, lei, noi, voi, loro,... Perché? e Quando si usa? *Grazie per la tua attenzione ;D

I think the next step depends on what you want to speak with your customers, that makes you choose the vocabulary. But you need the grammar as a basis so I recommend you start before of all with the difference of ser and estar, in English is only one verb: to be. The conjugation of verbs is the most difficult I think in Spanish so it's good that you start with these used verbs, start with present. To sum up, choose the vocabulary and go to grammar, principally conjugating verbs such as: ser, estar, haber, ir,...

Haber can be an auxiliar or a principal or modal verb; - Haberlo dicho antes! (it's difficult to me translating it, but it means: You should have tell me before) - Has de estudiar más: you has to study more - Sólo hay un restaurante en el pueblo: there is only one restaurant in town So haber use for composes times as: he ido, habré ido, habrá ido,.... or for say the quantity (as there is or il y a) or for obligation has de estudiar, synonym of tienes que estudiar or other example: has de recoger tu cuarto (= tienes que recoger tu cuarto) haber de is more formal, I think. More examples, I can think with haber: - He hecho mis deberes - Han de ser las siete (it means: it can be seven o'clock) - Has tenido que ir esta mañana para recoger el certificado - Lo he pensado mejor - Hay muchas personas en el concierto - Hay una persona sola sentada -... If you need more examples, tell me ;D