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"Sea" is a form of "sea", a phrase which is often translated as "be". "Pienso que" is a phrase which is often translated as "I think that". Learn more about the difference between "sea" and "pienso que" below.
sea
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
1.
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(imperative; second person singular)
a. be
Sea cuidadoso con esas copas; son frágiles.Be careful with those glasses; they're fragile.
a. to be
Mi madre quiere que sea más paciente.My mother wants me to be more patient.
3.
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(subjunctive; second person singular)
a. to be
Es importante que sea amable con sus vecinos.It's important for you to be kind to your neighbors.
a. to be
Ana María le pidió a su hermana que sea su dama de honor en la boda.Ana Maria asked her sister to be her bridesmaid in her wedding.
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pienso que(
pyehn
-
soh
 
keh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. I think that
Pienso que todos deberíamos usar más el transporte público y menos nuestros automóviles.I think that we should all use public transport more and our cars less.
b. I think
¿Qué opinas de lo que dice Carlos? - Pienso que es un mentiroso.What do you think about what Carlos said? - I think he's a liar.
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