Learn Spanish (Latin America): Realmente me gusta este libro.

Adjectives that end in a consonant (like real or feliz) or the letter -e (like fuerte) have the same form for both masculine and feminine words. Because there is no separate feminine form, you just add -mente directly to the base adjective: real + -mente = realmente.

Does realmente translate to "royally" or "really"?

It means "really" or "truly." While the adjective real can mean "royal" in Spanish, its most common everyday meaning is "real" or "actual," making realmente the perfect translation for the English word "really."

Just for review, why is it me gusta instead of yo gusto?

The verb gustar works backward compared to "to like" in English. It translates closer to "to be pleasing to." So me gusta este libro actually works like "this book is pleasing to me." That is why we use the pronoun me (to me) and conjugate the verb as gusta to match the singular book.

I often mix up este and esto. Why do we use este libro here?