Mi hermana quiere ser periodista y escribir un reportaje sobre el cambio climático.

to want

Breakdown of Mi hermana quiere ser periodista y escribir un reportaje sobre el cambio climático.

• un: a
• ser: to be
• mi: my

Questions & Answers about Mi hermana quiere ser periodista y escribir un reportaje sobre el cambio climático.

Why is it mi hermana and not la mi hermana?

In modern standard Spanish, you normally use the short possessive adjective before the noun:

• mi hermana = my sister
• tu hermano = your brother
• su casa = his/her/their house

Using la mi hermana is not standard modern Spanish. Spanish does have longer possessive forms like mío, tuyo, suyo, but those are usually used after the noun or on their own:

• una hermana mía = a sister of mine
• Esta hermana es mía = This sister is mine

So mi hermana is simply the normal way to say my sister.

Why is it quiere ser and quiere escribir?

After querer (to want), Spanish usually uses an infinitive if the subject is the same person doing both actions.

Here, mi hermana is the subject of everything:

• mi hermana quiere = my sister wants
• ser periodista = to be a journalist
• escribir un reportaje = to write a report/article

So the structure is:

• [subject] + querer + infinitive

Examples:

• Quiero comer. = I want to eat.
• Queremos viajar. = We want to travel.
• Mi hermana quiere ser periodista. = My sister wants to be a journalist.

You do not need que here because there is no change of subject.