Make a negation. ricardo conoce a un chico que estudia medicina. laura y diego cuidan a un perro que protege su casa. maribel y lina tienen un pariente que escribe poemas. los gonzález usan coches que son baratos.

En cambio de algunas poemas, Laura y Diego le presetan el perro que cuidan   por un rato.

Ricardo no conoce a un chico que estudia medicina.

Laura y Diego no cuidan a un perro que protege su casa.

Maribel y Lina no tienen un pariente que escribe poemas.

Los González no usan coches que son baratos.

Explanation:

A negation in Spanish is formed by using the word "no" plus the verb of the action. It's the equivalent in English of "don't" or "doesn't". It's really simple to form because the verb doesn't change, as in English when the verb may have a variation. For example: he likes ice cream. He doesn't like ice cream.

2 examples of how people live in their space and time defined with their particular characteristics

corras is the only one that is informal but doesn't follow the suffix rule. correr is the verb. corre is the formal verb form. corra would be used as the formal is corre ended with an a.

your best bet would be corras, it's the only one that is informal but is still wrong