You (informal) wrote letters.
Tu escibiste cartas.
He wrote letters.
El escibio cartas.
She wrote letters.
Ella escibio cartas.
You (formal) wrote letters.
Usted escibio cartas.
We (male) wrote letters.
Nosotros escribimos cartas.
We (female) wrote letters.
Nosotras escribimos cartas.
We (male & female) wrote letters.
Nosotros escribimos cartas.
They (male) wrote letters.
Ellos escribieron cartas.
They (female) wrote letters.
Ellas escribieron cartas.
Ya'll wrote letters.
Ustedes escribieron cartas.
I learned in school.
Yo aprendi en la escuela.
You (informal) learned in school.
Tu apreniste en la escuela.
He learned in school.
El aprendio en la escuela.
She learned in school.
Ella aprendio en la escuela.
We (male) learned in school.
Nosotros aprendemos en la escuela.
You (formal) learned in school.
Usted aprendio en la escuela.
We (male and female) learned in school.
Nosotros aprendemos en la escuela.
They (male) learned in school.
Ellos aprendieron en la escuela.
They (female) learned in school.
Ellas aprendieron en la escuela.
They (male and female) learned in school.
Ellos aprendieron en la escuela.
I went up stairs.
Yo subi las escaleras.
You (informal) went up stairs.
Tu subiste las escaleras.
You (formal) went up the stairs.
Usted subio las escaleras.
He went up the stairs.
El subio las escaleras.
She went up the stairs.
Ella subio las escaleras.