Reflexive Verbs

I learned that a verb is reflexive when the infinitive has "se" attached to the end of the verb.  Reflexive mean it contains words that end in -self.  For example, myself, yourself,etc.  The word "se" is a third person reflexive pronoun.  "Se" also means himself, herself, themselves, yourself, or yourselves.  Reflexive pronoun uses the same four pronouns that direct object pronoun uses.  (me, nos, te, and os)

Negation

Negations are words in which you may have more than one negative word in a sentence.  I learned that if you have a negative after a verb, you must have a negative before the verb. For example, He never runs would be No corre nunca.  Also, if you already have a negative before the verb than you don't have to put "No" in front of it.

Comparisons

Comparison of inequality is when you refer to someone being sadder, happier, shorter, or taller than you.  Comparison of equality is when you refer to someone being just as tall, just as short, or just as pretty as you.  I also learned that tan mean "as", tanto and tanta means "as much", and tantos and tantas means "as many".  How you use these words depends on whether the word is singular, plural, masculine, or feminine.