Learn Hardcore Spanish (Latin America): Siempre reviso mi reloj para no llegar tarde al experimento. - I always check my watch so I don’t arrive late to the experiment.

Siempre means "always" and is an adverb of frequency. In Spanish, you can place adverbs before or after the verb or at the very beginning for emphasis. Saying Siempre reviso mi reloj highlights how habitual the action is. You could also say Reviso siempre mi reloj or Reviso mi reloj siempre, but the emphasis shifts slightly each time.

What nuance does reviso mi reloj carry, and can I use miro mi reloj instead?

Revisar means "to check" or "to examine," implying a deliberate action to verify the time. Mirar simply means "to look at." So reviso mi reloj emphasizes checking the time carefully, while miro mi reloj just says you look at your watch. Both are grammatically correct, but revisar is more precise when you want to convey that you’re checking.

I’ve heard checar in Mexico. Can I say checo mi reloj?

Yes. In many Latin American countries—especially Mexico—checar (from English "check") is widely used in informal speech. Checo mi reloj is perfectly natural in Mexican Spanish. In other regions, speakers often prefer revisar, but everyone will understand checar.

What does the para no + infinitive structure express?