Adverbs of probability (quizás, tal vez)

Expressing probability with quizás and tal vez

When plans are up in the air—like a changing weather forecast for your camping trip—you will often use adverbs of probability like quizás (maybe/perhaps), tal vez (maybe), and posiblemente (possibly).

Unlike ojalá, which always requires the subjunctive, these adverbs give you a choice. You can follow them with either the subjunctive or the indicative, depending on how certain you feel.

Use the subjunctive when there is a lot of doubt or the outcome feels uncertain.

Maybe the weather will get worse, according to today's forecast.
Tal vez el clima empeore, según el pronóstico de hoy.
Maybe we will pitch the tent in the forest.
Quizás armemos la carpa en el bosque.
Possibly the weather will worsen and the wind will be severe.
Posiblemente el clima empeore y el viento sea severo.

Use the indicative when you feel more confident that the event is likely to happen.

Maybe we will make a campfire if the weather improves.
Quizás hacemos una fogata si el clima mejora.

The exception: a lo mejor

There is one very common phrase for "maybe" that works a bit differently: a lo mejor. Even though it expresses possibility, it is almost always followed by the indicative.

Maybe he is bundling up because it is very cold.
A lo mejor él se abriga porque hace mucho frío.
Maybe they are pitching the tent now and unpacking the backpacks.
A lo mejor ellos arman la carpa ahora y desempacan las mochilas.