Let's have a look at them:
The personal pronouns (I, you, he, she , it, we, you, they) are always the subject of the sentence (they start the sentence) and they are followed by a verb: "I eat apples", or "He and I are good friends".
Let's see the mistake made in the picture below:
In the picture it is used an object pronoun ("me") instead of a subject one ("I"), which is incorrect.
Object pronouns (me, you, him, her, it, us, you, them) are used as an indirect object, and they always follow a verb or a preposition. They can't be used as subjects of the sentence, as they don't perform the action, they receive the action: "He gave me a present" or "I'm worried about you".
And finally, we'll see the misuse of the possessive adjectives (my, your, his, her, its, our, your, their):
In this case, the possessive adjective "your" can't be used, as this kind of adjectives indicate possession and they are always followed by a noun (in this case there is an adjective "stupid"). The correct way in this picture would be "you're or you are", this is, a subject pronoun followed by a verb.
- SPANISH VERSION:
Ocurren algunos errores típicos cuando la gente quiere hacer uso de los pronombres personales u objeto, e incluso también cuando usan los adjetivos posesivos.
Vamos a verlos:
Los pronombres sujeto (I, you, he, she , it, we, you, they) son siempre el sujeto de la frase (comienzan la frase) y van seguidos de un verbo: "I eat apples" ("Yo como manzanas"), or "He and I are good friends" ("Él y yo somos buenos amigos").
Veamos el error en la foto de abajo: