Los pacientes tosen mucho.
The verb must agree in <u>number</u> and <u>person</u> with the subject of the sentence. The mood is indicative, more precious, present of the indicative.
Answer:
Tosen
Explanation:
The correct answer is "tosen" because it's in plural and in present.
1. Alumnos
2. El director
3. La muchacha
4. el chico
5. La mujer
6. el hombre
7. la maestra
8. amigo
9. aficionado