To use the special verb "ser" in the present tense, you should learn its special forms. This verb doesn't play by the usual rules. Here’s how it looks in the present tense:

• Yo soy (I am)
• Tú eres (You are - familiar)
• Él/Ella/Usted es (He/She/You - formal are)
• Nosotros/as somos (We are)
• Vosotros/as sois (You all are - familiar, mainly used in Spain)
• Ellos/Ellas/Ustedes son (They/You all - formal are)

Important Points About Grammar:

1. Present Tense of Regular Verbs:

   • For -ar verbs (like hablar): yo hablo (I talk)
   • For -er verbs (like comer): yo como (I eat)
   • For -ir verbs (like vivir): yo vivo (I live)

2. Some Irregular Verbs:

   • ser (to be), estar (to be), ir (to go).

3. Articles:

   • Definite (specific): el, la (the)
   • Indefinite (general): un, una (a/an)

4. Nouns and Adjectives:

   • Gender: el perro (the dog - masculine), la casa (the house - feminine).
   • Number: los perros (the dogs - plural), las casas (the houses - plural).

5. Question Words:

   • ¿Qué? (What?), ¿Dónde? (Where?), ¿Cómo? (How?)

6. Saying No:

   • Just place "no" before the verb. For example: Yo no soy (I am not).

7. Present Progressive:

   • To show actions happening now, use estar + gerund. For instance, estoy hablando means "I am speaking."

8. Commands:

   • For familiar speaking: Habla (Speak - tú)
   • For formal speaking: Hable (Speak - usted)

9. Basic Sentence Structure:

   • A simple way to put sentences together is: Subject + verb + object. For example, "I eat apples" translates to "Yo como manzanas."

10. Prepositions:

    • a (to), de (from), en (in/on), con (with).