Este curso es muy interesante.

this

Breakdown of Este curso es muy interesante.

• ser: to be
• muy: very
• interesante: interesting

Questions & Answers about Este curso es muy interesante.

Why is it este and not esta or esto?

Este is the masculine singular form of “this,” used before a masculine singular noun.

• este curso = this course (masculine, singular)
• esta clase = this class (feminine, singular)
• estos cursos = these courses (masculine, plural)
• estas clases = these classes (feminine, plural)

Esto is neuter and is not used with a specific noun; it stands alone:

• Esto es interesante. = This (thing/situation) is interesting.

In Este curso es muy interesante, curso is masculine singular, so you must use este.

Why doesn’t este have an accent mark (why not éste)?

You may see éste (with accent) in older texts, but current standard Spanish (RAE rules) recommends este without an accent when it comes before a noun:

• este curso, esta casa, estos libros, estas personas

An accent is now only possible (and even then not required) when the word stands alone and there could be ambiguity, e.g.:

• Este es mejor que ese.

Even there, most modern writing still uses este without an accent. So in your sentence, este is correct and normal.

Why is curso masculine? How can I tell the gender of nouns like this?