vs 

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"Probablemente" is an adverb which is often translated as "probably", and "tal vez" is a phrase which is often translated as "maybe". Learn more about the difference between "probablemente" and "tal vez" below.
probablemente(
proh
-
bah
-
bleh
-
mehn
-
teh
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
adverb
a. probably
Probablemente iremos al supermercado al rato.We'll probably go to the supermarket later.
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tal vez(
tahl
 
behs
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. maybe
Tal vez se le olvidó que ustedes se iban a encontrar.Maybe she forgot that you were going to meet up.
b. perhaps
¿Tal vez le gustaría una taza de té, señora?Perhaps you would like a cup of tea, ma'am?
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