Lo olvidé completamente.

it

Breakdown of Lo olvidé completamente.

• olvidar: to forget
• completamente: completely

Questions & Answers about Lo olvidé completamente.

Why is lo used in Lo olvidé completamente?

Lo is a direct object pronoun meaning it (or sometimes him, in some contexts, though here learners usually meet it as it).

In this sentence, it stands for the thing that was forgotten:

• Olvidé el libro. = I forgot the book.
• Lo olvidé. = I forgot it.

So lo replaces a previously mentioned masculine singular noun, or sometimes an idea/situation treated as it.

Why does lo come before olvidé instead of after it?

In Spanish, unstressed object pronouns normally go before a conjugated verb.

So:

• Lo olvidé = I forgot it

not:

• Olvidé lo ❌

Pronouns can attach to the end of the verb only in certain structures, such as:

• olvidarlo = to forget it
• olvídalo = forget it

But with a normal conjugated past-tense verb like olvidé, the pronoun goes before it.

What exactly is olvidé?

Olvidé is the first-person singular preterite form of olvidar:

• olvidar = to forget
• olvidé = I forgot

This tense is used for a completed action in the past.

So Lo olvidé completamente means that the forgetting happened and is viewed as finished.