Hesitating in Spanish: Using 'bueno', 'este', and 'no estoy seguro'
Learn to express hesitation and uncertainty in Latin American Spanish with fillers like bueno and este, and phrases like no estoy seguro, so you can pause naturally in conversation.

In real conversations, you often need a moment before answering. Spanish has its own set of hesitation markers that let you stall politely without sounding confused. This lesson teaches you how to say 'well', 'um', and 'I'm not sure' in Latin American Spanish, so you can buy time and respond more naturally.
By the end, you can…
- use 'bueno' to start a hesitant response.
- use 'este' or 'pues' as filler words when I need time to think.
- say 'no estoy seguro' to express uncertainty without sounding rude.
- combine these phrases to create a natural-sounding hesitant reply.
Listen once. Try it slowly. Then say it without looking.
Checking available voices…
Bueno...
Well...
BWEH-noh
Used at the beginning of a sentence to signal hesitation or to soften a response. Common in Latin America.
Este...
Um...
EHS-teh
A filler word used when pausing to think. Very common in Mexico and Central America; in other regions, 'eh' or 'mmm' may be more frequent.
Pues...
Well... / Then...
PWEHS
Can mean 'well' when hesitating or 'then' in logical conclusions. Often stretched out: 'Pueees...' Note: 'pues' is used across the Spanish-speaking world, not only in Latin America.
No estoy seguro.
I'm not sure.
noh ehs-TOY seh-GOO-roh
A direct but polite way to express uncertainty. For feminine speakers: 'No estoy segura.'
Depende.
It depends.
deh-PEHN-deh
Used when the answer is not straightforward. Often preceded by 'Bueno...' to show hesitation.
Pronunciation guides are approximate. Slow playback keeps the original pitch.
Make it make sense
Useful pattern
Hesitation in Spanish often combines a filler word with a pause and a follow-up. For example: 'Bueno... este... no estoy seguro.' This pattern lets you stall while you think. You can also use 'pues' alone: 'Pues... depende.' Notice that these words do not change the meaning of the sentence; they just make your speech sound more natural and give you time.
When to use it
Use these hesitation markers when you need to pause before answering a question, especially if the answer is not simple. For example, if someone asks '¿Vas a venir a la fiesta?' (Are you coming to the party?), you can reply 'Bueno... no estoy seguro.' This shows you are considering it. Avoid overusing fillers in formal writing or presentations; they are mainly for spoken conversation.
Listen to each line, then take one part and reply out loud.
¿Vas a venir a la fiesta esta noche?
Are you coming to the party tonight?¿Vas a ve-NEER a la FYES-ta ES-ta NO-che?Bueno... este... no estoy seguro.
Well... um... I'm not sure.BWEH-noh... EHS-teh... noh ehs-TOY seh-GOO-roh.¿Por qué? ¿Tienes otros planes?
Why? Do you have other plans?¿Por KEH? ¿TYEH-nes OH-tros PLA-nes?Pues... depende. Tal vez tenga que trabajar.
Well... it depends. Maybe I have to work.PWEHS... deh-PEHN-deh. Tal VES TEN-ga keh tra-ba-HAR.A little context goes a long way
In Latin American Spanish, 'bueno' and 'este' are extremely common in casual conversation. 'Este' is widely used in Mexico and Central America, while in some South American countries, 'eh' or 'mmm' might be more frequent. Using these fillers shows you are engaged and thinking, not that you are unprepared. However, in formal settings like job interviews, it's better to pause silently than to use many fillers.
One thing to watch for
Thinking 'bueno' in a hesitant response means 'good', as in 'Bueno, no estoy seguro' when you mean 'Good, I'm not sure.'
Try this instead: 'Bueno' as a hesitation marker means 'well', not 'good'. If you want to say 'good', use 'bien' or 'bueno' as an adjective. For example: 'Está bien' (It's fine) or 'Es bueno' (It's good). In hesitation, 'Bueno...' is just a filler.
Your turn
Try answering out loud before checking a possible answer.
1How would you say 'Well, it depends' in Spanish, using a hesitation marker?
Show a sample answer
Bueno... depende.
'Bueno' signals hesitation, and 'depende' means 'it depends'. You could also use 'Pues... depende', which is equally natural.
2What is a common filler word in Mexican Spanish that means 'um'?
Show a sample answer
Este...
'Este' is widely used in Mexico and Central America as a filler. In other regions, 'eh' or 'mmm' might be more common, but 'este' is understood broadly.
3How do you say 'I'm not sure' if you are a female speaker?
Show a sample answer
No estoy segura.
The adjective 'seguro' changes to 'segura' for feminine speakers. This is a polite and direct way to express uncertainty.
Use 'bueno', 'este', and 'pues' to hesitate naturally in Spanish, and 'no estoy seguro/a' to express uncertainty politely. Practice combining them to sound more fluent.
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