Es la mía = "That (feminine) object is mine." or "She's mine."
tu es la bienvenue ma chérietu es la bienvenue mon amour
tu es l'amour de ma vie - you are the love of my life
The capital is ... La capital es Montevideo. <-- For example .
"Tu es la ..." means "you are the ...". "Tu es là" (accented "à") means you are here.
Tu es la vedette de la classe = You are the star of the class
the trash
So you are there, my beautiful (girl)(?) Then thou art my Beautiful
"tu es la lumière de ma vie"
"Cual es la pregunta" translates to "What is the question" in English.
"Es interesante la clase" means "the class is interesting" in English.
What(cual) is(es) the date(la fecha) tomorrow (manana)?
That it is the dolecencia? is that what you mean?