I think, therefore…
In English, verb forms change depending on who’s doing the action. For example, we say I am, you are, and she is. In Spanish, you do the same thing.
subject verb(ser)
yo soy
I I am
tu eres
you you are
el es
he he is
ella es
she she is
Yo soy una niña. Tu eres un niño.
I am a girl. You are a boy-