In Spanish, we use the verb "ser" when we talk about someone's job. This is because jobs are usually something that stays the same. Let’s learn how to use "ser" and "estar," and how to use them correctly!

Important Grammar Points

1. Using "ser" (An Irregular Verb):

   • Present Tense: soy, eres, es, somos, sois, son
   • Example: Yo soy médico. (I am a doctor.)

2. Using "estar" (Another Irregular Verb):

   • Present Tense: estoy, estás, está, estamos, estáis, están
   • Example: Yo estoy cansado. (I am tired.)

3. Permanent vs. Temporary:

   • We use "ser" for jobs, which are permanent:
     • Example: Ella es profesora. (She is a teacher.)
   • We use "estar" for things that can change:
     • Example: Ella está en casa. (She is at home.)

4. Making Negative Sentences:

   • To say something is not true, just add "no" before the verb.
   • Example: Yo no soy ingeniero. (I am not an engineer.)

5. Asking Questions:

   • Change the order of the subject and the verb.
   • Example: ¿Eres estudiante? (Are you a student?)

6. Matching Adjectives:

   • Adjectives must match the nouns in gender (masculine or feminine) and number (singular or plural).
   • Example: Ellos son amigos amables. (They are friendly friends.)

By following these rules, you will be able to talk about jobs in Spanish using "ser" in the right way!