Correlative constructions use paired conjunctions — two parts that work together to connect two parallel elements. English has pairs like both...and, either...or, and not only...but also. Spanish has its own set, and they follow specific rules of structure, position, and agreement.
Correlatives make your Spanish more precise and expressive by explicitly marking the relationship between two elements before the reader even gets to the second one.
No Solo...Sino También — Not Only...But Also
This is the most important correlative pair. It highlights that both elements are true, with the second being an addition or escalation.
No solo es inteligente, sino también trabajadora.
She's not only intelligent, but also hardworking.
No solo llegaron tarde, sino que también se fueron temprano.
They not only arrived late, but also left early.
When the second element is a full clause with its own conjugated verb, use sino que también (adding que before the verb).
Tanto...Como — Both...And / As Much...As
This pair emphasizes that both elements are equally included or equally valid.
Me gusta tanto el cine como el teatro.
I like both movies and theater.
Trabaja tanto en la oficina como desde casa.
She works both at the office and from home.
When tanto...como connects two subjects, the verb is plural because it refers to both.
Tanto el director como los empleados estuvieron de acuerdo.
Both the director and the employees agreed.
Ni...Ni — Neither...Nor
This pair negates both elements. When ni...ni precedes the verb, no additional no is needed.
Ni Juan ni María vinieron.
Neither Juan nor María came.
No tengo ni tiempo ni ganas.
I have neither time nor desire.
Ni sabe ni le importa.
He neither knows nor cares.
When ni...ni comes after the verb, the sentence typically begins with no.
No me gusta ni el frío ni el calor.
I like neither the cold nor the heat.
The verb is usually plural when ni...ni connects two subjects, though singular is sometimes heard in informal speech.
O...O — Either...Or
The doubled o...o emphasizes that the choice is between exactly two options — no third possibility.
O vienes conmigo o te quedás.
Either you come with me or you stay.
Tenés que decidir: o estudiás o trabajás.
You have to decide: either you study or you work.
O lo hacemos hoy o no lo hacemos nunca.
Either we do it today or we never do it.
Simple o presents options neutrally; doubled o...o creates a more dramatic, exclusive-choice feeling.
Ya...Ya — Whether...Or / Now...Now
This literary or formal pair presents two alternating possibilities, suggesting that whichever one applies, the result is the same.
Ya llueva, ya haga sol, siempre sale a correr.
Whether it rains or the sun shines, he always goes out running.
Ya por cansancio, ya por aburrimiento, todos se fueron.
Whether from tiredness or boredom, everyone left.
Ya...ya is more common in writing and formal speech than in everyday conversation.
Sea...Sea — Whether...Or
Sea...sea (from the subjunctive of ser) works similarly to ya...ya, presenting alternatives with an "it doesn't matter which" meaning.
Sea por la razón que sea, no vino.
Whatever the reason, he didn't come.
Sea en casa o sea en el trabajo, siempre está ocupado.
Whether at home or at work, he's always busy.
Bien...Bien — Whether...Or
Another formal pair with the same "alternating" meaning as ya...ya and sea...sea.
Bien por gusto, bien por necesidad, aprendió a cocinar.
Whether by choice or by necessity, he learned to cook.
This construction is primarily found in written and formal registers.
Cuanto Más...Más — The More...The More
This correlative expresses a proportional relationship — as one thing increases, so does another.
Cuanto más estudio, más aprendo.
The more I study, the more I learn.
Cuanto más lo pienso, menos lo entiendo.
The more I think about it, the less I understand it.
Cuanto antes llegues, mejor.
The sooner you arrive, the better.
The first part uses cuanto más/menos/antes and the second uses más/menos/mejor/peor. In informal speech, cuanto is sometimes replaced by entre: Entre más estudio, más aprendo. This variant is widespread in Latin America.
Agreement and Parallel Structure
Correlatives work best when the two elements they connect are parallel — the same grammatical category.
| Good (Parallel) | Awkward (Not Parallel) |
|---|---|
| No solo es inteligente sino también trabajadora. (adj + adj) | No solo es inteligente sino también trabaja mucho. (adj + clause) |
| Tanto en casa como en el trabajo. (PP + PP) | Tanto en casa como trabajando. (PP + gerund) |
| Ni estudia ni trabaja. (verb + verb) | Ni estudiando ni que trabaje. (gerund + clause) |
Maintaining parallelism makes the sentence clear and balanced. When the two elements are different categories, it usually sounds better to rephrase.
No...Sino — Correction Without "También"
A close relative of no solo...sino también is the simpler no...sino pattern without también. This corrects one element with another, without implying both are true.
No lo hizo por diversión, sino por necesidad.
He didn't do it for fun, but out of necessity.
The difference: no solo...sino también adds (both A and B). No...sino replaces (not A, but B instead). See Coordination for more on the sino conjunction.
Summary Table
| Correlative | Meaning | Register |
|---|---|---|
| no solo...sino (que) también | not only...but also | all registers |
| tanto...como | both...and | all registers |
| ni...ni | neither...nor | all registers |
| o...o | either...or | all registers |
| ya...ya | whether...or | formal/written |
| sea...sea | whether...or | formal/written |
| bien...bien | whether...or | formal/written |
| cuanto más...más | the more...the more | all registers |
Where to Go Next
Correlatives are a special type of coordination. For the basic coordinating conjunctions (y, o, pero, sino, ni), see Coordination. For more ways to combine sentences, continue to Sentence Combining Strategies. For how elements can be omitted in paired structures, see Ellipsis.
Related Topics
- CoordinationA2 — Learn how Spanish joins independent clauses and phrases with coordinating conjunctions like y/e, o/u, pero, sino, and ni.
- Sentence Combining StrategiesB1 — Learn practical techniques for turning short, simple Spanish sentences into complex, flowing ones — using coordination, subordination, relative clauses, and non-finite constructions.
- Adverbial ClausesB1 — Learn how Spanish adverbial clauses express cause, time, purpose, concession, condition, and result — and when to use indicative vs. subjunctive in each.
- EllipsisB2 — Learn what Spanish allows you to leave unsaid — from pro-drop subjects to verb phrase ellipsis, sluicing, and gapping in coordinated structures.