vs
QUICK ANSWER
"Si" is a form of "si", a conjunction which is often translated as "if". "Lo haré" is a phrase which is often translated as "I'll make it". Learn more about the difference between "si" and "lo haré" below.
si(
see
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
lo haré(
loh
ah
-
reh
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. I'll make it
¿Cómo vas a hacer el castillo de la princesa? - Lo haré con cartulina y papel de aluminio.How are you going to make the princess' castle? - I'll make it with poster board and tinfoil.
b. I'll prepare it
¿Vas a hacer el pollo como la última vez? - No, hoy lo haré con pimientos rojos.Are you going to prepare the chicken like the last time? - No, I'll prepare it with red peppers today.
a. I'll do it
No olvide llamar al señor Fernández. - Lo haré en cuanto tenga un momento libre.Don't forget to call Mr. Fernandez. - I'll do it as soon as I have a spare moment.
