Answer:
1. yo entendía, hablaba
2. tu entendías, hablabas
3. él/ella/usted entendía, hablaba
4. nosotros entendíamos, hablábamos
5. ustedes/ellos/ellas entendían, hablaban
Second excercise:
2. Camila tiene fiebre. Camila tenía fiebre.
3. La enfermera siempre me toma la temperatura. La enfermera siempre me tomaba la temperatura.
4. Enrique tiene dolor de cabeza con frecuencia. Enrique tenía dolor de cabeza con frecuencia.
5. A los niños les duele la garganta. A los niños les dolía la garganta.
6. A nosotros no nos gusta ir al dentista. A nosotros no nos gustaba ir al dentista.
7. Yo soy alérgico a la aspirina. Yo era alérgico a la aspirina.
Explanation:
The imperfect past tense of the indicative is a frequent tense in Romance languages. It describes an action or state in the past whose time limits are not relevant, that is, a grammatical time of the past with a grammatical aspect. It is used in Spanish to express courses of past actions whose beginning and end are not specified.
<span>In Spanish, the words</span><span> tú and </span>usted <span> both mean “you". However, tú is much less formal than </span>usted<span>.
So, you </span>use<span> tú when you're talking to someone of the same age, the same rank, or the same educational level, but when talking to someone who's considered a high rank, maybe a grandparent, you would use usted.</span>