Cierro la puerta cada día.

I close the door every day.

Breakdown of Cierro la puerta cada día.

• yo: I
• el día: the day
• la puerta: the door
• cerrar: to close
• cada: each, every

Questions & Answers about Cierro la puerta cada día.

Why do we say "cierro" and not another form like "cierres" or "cierra"?

In Spanish, cierro is the first-person singular (yo) present indicative form of the verb cerrar (to close). So if you’re talking about yourself doing the action, you use cierro. For you close, you’d say cierras, and for he/she/it closes, it would be cierra.

Why do we use the definite article "la" before "puerta"?

In Spanish, you typically use a definite article (la, el) before nouns in a lot of contexts where English might skip it (e.g., "I close the door" vs. "I close door"). Since you’re referring to a specific door, you use la.

Does "cada día" mean the same as "todos los días"?

Yes, cada día literally means each day, and todos los días means every day. Both expressions communicate that the action happens daily. There’s no major difference in meaning; you can use either one to say you do something every day.

Can I say "Cierro mi puerta cada día" instead of "Cierro la puerta cada día"?

Yes, if you want to emphasize that it’s specifically your door. However, if the context is already clear that it’s your door (e.g., the door of your house), saying la puerta works just fine.

How would it change if I'm talking about you (tú) instead of me (yo)?

For addressing someone else, you’d use the second-person singular form cierras, so the sentence would become:
Cierras la puerta cada día (You close the door every day).