El relevo cubre la franja horaria.

Because cubre is the conjugated form of the verb cubrir in the present tense.

• cubrir = the infinitive, to cover
• cubre = he/she/it covers or you cover (usted)

In El relevo cubre la franja horaria, the subject is el relevo, which is third-person singular, so the verb must also be third-person singular: cubre.

This verb also has a small stem change in the present:

• yo cubro
• tú cubres
• él/ella/usted cubre
• nosotros cubrimos
• vosotros cubrís
• ellos/ellas/ustedes cubren

So it is not cubir or cobra or anything similar; the correct form is cubre.

Here, el relevo usually means the relief shift, the replacement, or the team/person taking over.

The noun relevo can refer to:

• the act of replacing someone
• the person who replaces someone
• the next shift or group that takes over

In a work-schedule context, el relevo often means the person or shift that comes in to continue the work.

So in this sentence, it is probably referring to the shift or staff member who is responsible for that time period.

Spanish uses definite articles much more often than English.

So where English might say:

• Shift change covers the slot
• Relief covers the time period

Spanish often prefers:

• El relevo
• La franja horaria

The article tells you we are talking about a specific, identifiable relevo. In context, this usually means the relevant shift/replacement already known from the schedule or conversation.

Franja horaria is a common expression meaning a time slot, time band, or scheduled time period.

Breakdown:

• franja = strip, band, range
• horaria = related to hours or time

Together, franja horaria refers to a block of time within a schedule.

In Spain, this is a very natural expression in contexts like:

• work schedules
• TV schedules
• appointment systems
• transport timetables

So it is more specific than just tiempo. It suggests a defined slot on a timetable.

Because franja is a feminine noun, so it takes la.

• la franja
• la franja horaria

The adjective horaria also agrees with the feminine noun:

• masculine would be horario
• feminine is horaria

So:

• el horario = the timetable/schedule
• la franja horaria = the time slot / time band

Yes, in this kind of sentence, franja horaria sounds more precise.

Compare:

• la hora = the hour / the time
• la franja horaria = the time slot / the scheduled time period

If you say hora, it may sound too narrow or too general depending on context. Franja horaria makes it clear that this is a defined portion of a timetable, not just a clock time.

For example:

• a las tres = at three o’clock
• la franja de 15:00 a 18:00 = the 3 pm to 6 pm slot

Sometimes yes, but they are not always exactly the same.

• turno usually means shift or turn
• relevo usually suggests replacement, handover, or the relieving shift/person

So:

• El turno cubre la franja horaria = the shift covers the time slot
• El relevo cubre la franja horaria = the replacement/relief shift covers the time slot

If the emphasis is on a scheduled work period, turno may be more straightforward. If the emphasis is on one person or team taking over from another, relevo is especially suitable.

Because cubrir normally takes a direct object.

You cover something, so in Spanish:

• cubrir una vacante
• cubrir un turno
• cubrir una necesidad
• cubrir la franja horaria

No preposition is needed.

English sometimes uses different structures, but in Spanish this verb works directly with the thing being covered.

Yes. The basic order here is the most neutral one:

El relevo cubre la franja horaria.

But Spanish allows other orders for emphasis, for example:

La franja horaria la cubre el relevo.

That version puts focus on la franja horaria. The extra la is a direct-object pronoun that repeats the object, which is common in Spanish when moving the object to the front.

So both are possible, but the original sentence is the simplest and most neutral.

A helpful approximate pronunciation is:

• relevo: reh-LEH-boh
• cubre: KOO-breh
• franja horaria: FRAN-ha oh-RAH-rya

A few notes for Spain:

• v in relevo sounds very close to b
• j in franja is a throaty sound, not an English j
• h in horaria is silent
• stress falls on:
  • reLEvo
  • CUbre
  • FRANja hoRAria

Yes. It is in the present indicative: cubre.

In Spanish, the present tense can describe:

• a general fact
• a current situation
• a scheduled arrangement

So depending on context, El relevo cubre la franja horaria could mean:

• the relief shift covers that time slot in general
• the relief shift is covering it now
• the schedule says the relief shift covers that slot

Spanish often uses the present for timetable-style statements, just like English sometimes does.