vs 

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"Lo siento" is a phrase which is often translated as "I'm sorry", and "pero no puedo" is a phrase which is often translated as "but I can't". Learn more about the difference between "lo siento" and "pero no puedo" below.
lo siento(
loh
 
syehn
-
toh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. I'm sorry
Rompí tu ordenador. Lo siento.I broke your computer. I'm sorry.
a. I'm sorry
Me enteré del fallecimiento de tu padre. Lo siento.I heard about the death of your father. I'm sorry.
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pero no puedo(
peh
-
roh
 
noh
 
pweh
-
doh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. but I can't
Me gustaría ir al cine, pero no puedo: tengo que estudiar.I'd like to go to the movies, but I can't; I have to study.
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