Learn Spanish (Latin America): Hay que guardar el pasaporte en el bolsillo. - You have to keep the passport in your pocket.

Hay que expresses an impersonal obligation, meaning "One must" or "It is necessary to." The English translation uses a general "You," but it isn't directed at a specific person. If you wanted to tell a specific friend that they need to keep their passport in their pocket, you would use Tienes que.

Does the verb guardar mean "to guard" or "to keep"?

Here it means "to keep" or "to put away." While guardar looks like the English word "guard," it is usually used for saving a file, putting things away, or keeping an item in a specific place. If you want to say "to guard" or "to protect," Spanish usually uses proteger or vigilar.

Why does the sentence use el pasaporte and el bolsillo instead of tu pasaporte and tu bolsillo (your passport and your pocket)?

In Spanish, it is very common to use definite articles (el, la, los, las) instead of possessives (mi, tu, su) for personal items, clothing, and body parts when the owner is obvious from the context. Since this is a general rule using Hay que, saying "the passport" and "the pocket" sounds much more natural in Spanish.

Does the verb after hay que always stay in the infinitive form?