Questo è il mio... in Italian means "This is my..." English.
"This is my Dad!" in English is Questo è mio padre! in Italian.
"This is my lover" is an English equivalent of the Italian phrase Questo è il mio amante.Specifically, the masculine demonstrative pronoun questo is "this". The verb è means "(he/it/she) is". The masculine singular definite article il means "the". The masculine possessive adjective mio means "my". The feminine/masculine noun amante translates as "lover".The pronunciation will be "KWE-sto eh eel MEE-o a-MAN-te" in Italian.
Al mio amore in Italian is "To my love" in English.
"This one and mine" is an English equivalent of the Italian phrase questo e il mio. The masculine singular indefinite pronoun, conjunction, and masculine singular definite article and possessive model a difference between the two languages whereby English does not employ "the" where Italian requires their equivalents, with il here. The pronunciation will be "KWEY-sto ey eel MEE-o" in Italian.
questo e mio
Nel mio studio in Italian means "in my study" in English.
Il mio papi in Italian means "my Dad" in English.
"My pleasure!" in English is Piacere mio! in Italian.
Mio tempo
"Mio figlio"
"My diary" in English is il mio diario in Italian.
Te al mio fianco in Italian means "You by my side" in English.