Spanish Subject Pronouns

What subject pronoun would you use to replace: Antonio

What subject pronoun would you use to replace: señor García

What subject pronoun would you use to replace: señorita Hernández

What subject pronoun would you use to replace: tú y yo (m)

What subject pronoun would you use to replace: Teresa

What subject pronoun would you use to replace: los estudiantes

What subject pronoun would you use to replace: las amigas

What subject pronoun would you use to replace: Teresa y Antonio

What subject pronoun would you use to replace: la mochila

What subject pronoun would you use to replace: you, Juan