Learn Hardcore Spanish (Latin America): Comprendo más con mi libro verde.

In Spanish, most adjectives typically come after the noun they describe. So libro verde is the usual way to say green book. You will, however, see exceptions where the adjective can precede the noun, but that often changes the nuance of the description.

How would the sentence change if I used entiendo instead of comprendo?

Entiendo and comprendo are mostly interchangeable in everyday Spanish. There are subtle nuances—comprendo can sometimes imply a deeper, more conceptual understanding, while entiendo can feel more immediate. In everyday speech, both work fine, and the sentence would still convey a similar meaning.

What is the function of con in this sentence?

The preposition con literally translates to with in English. It's showing that the increased understanding is taking place when using your green book or together with it.

Could I say yo comprendo más con mi libro verde instead?

Yes. In Spanish, the subject pronoun (here yo) is optional because the verb form comprendo already indicates I. Adding yo can place more emphasis on I, but it would still be correct and natural to say yo comprendo más con mi libro verde.

Why do we say mi libro instead of mío libro?

Mi is a possessive adjective that must directly precede the noun (libro). Mío is a possessive pronoun, so it replaces the noun instead of modifying it. For example, you could say Este libro es mío (This book is mine), but when the noun is there, you’d use mi: mi libro.