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"Yo" is a pronoun which is often translated as "I", and "semana" is a noun which is often translated as "week". Learn more about the difference between "yo" and "semana" below.
yo(
yoh
)A pronoun is a word that stands in for a noun (e.g., she).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
3. (psychology)
la semana(
seh
-
mah
-
nah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. week
No estoy libre para cenar hasta la semana que viene.I'm not free for dinner until next week.