Necesito un bolígrafo para rellenar el formulario.

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Breakdown of Necesito un bolígrafo para rellenar el formulario.

• para: to
• necesitar: to need
• el bolígrafo: the pen

Questions & Answers about Necesito un bolígrafo para rellenar el formulario.

Why is it Necesito and not Yo necesito?

In Spanish, the subject pronoun is often omitted because the verb ending already tells you who the subject is.

• Necesito = I need
• The -o ending shows it is yo

So Necesito un bolígrafo is completely natural. You can say Yo necesito if you want extra emphasis, for example:

• Yo necesito un bolígrafo, no un lápiz.
  I need a pen, not a pencil.

Why is there un before bolígrafo?

Un means a or one and is the masculine singular indefinite article.

• un bolígrafo = a pen

It is un because bolígrafo is a masculine singular noun. If the noun were feminine, you would normally use una.

For example:

• un bolígrafo
• una carpeta

How do I know that bolígrafo is masculine?

You usually learn the gender together with the noun: el bolígrafo.

Many Spanish nouns ending in -o are masculine, and bolígrafo follows that common pattern:

• el bolígrafo
• un bolígrafo

A good habit is to memorise nouns with their article:

• not just bolígrafo
• but el bolígrafo

That makes it easier to use them correctly in sentences.