Question

How do you switch from ser to tener

Answer 1

conjugating actually

Answer 2

Sorry, I don't think I understand what you're asking.

"Ser" means "to be,"
and "tener" means "to have."

I'm not sure what you mean by switching from ser to tener.
Do you just want to know how to conjugate them?

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Infinitive: Ser

(Yo) Soy

(Tu) Eres

(El/Ella/Usted) Es

(Nosotros) Somos

(Ellos/Ellas/Ustedes) Son

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Infinitive: Tener

(Yo) Tengo

(Tu) Tienes

(El/Ella/Usted) Tiene

(Nosotros) Tenemos

(Ellos/Ellas/Ustedes) Tienen