The number uno (one) and numbers ending in uno, such as veintiuno, have more than
one form. Before masculine nouns, uno shortens to un. Before feminine nouns, uno
changes to una.
Atencin! The forms uno
In Leccin 1, you learned how to conjugate and use the verb ser (to be). You will now
learn a second verb which means to be, the verb estar. Although estar ends in -ar, it does
not follow the pattern of regular -ar verbs. The yo form (estoy) is irregular.
In both English and Spanish, the verb to be (ser) and numbers are used to tell time.
To ask what time it is, use Qu hora es? When telling time, use es + la with una
and son + las with all other hours.
Es la una.
Son las dos.
Son las seis.