1. and useful expressions.
Modal verbs
and useful expressions.

2. Modal verbs are paired up with infinitives to express something else
Tener + que + Infinitive (used when you have to do something)
Tener + ganas de + Infinitive (used when you feel like doing something)
Hay que + Infinitive (to express that something has to be done)
Ir + a + Infinitive (to say that you are going to do something)

3. Tener + que + Infinitive
To express when a person has to do something (an obligation) say tener que…and follow it with a verb in the infinitive. Conjugate only tener.
Tengo que escribir I have to write.
Pedro tiene que comer. Pedro has to eat.
Nadia y yo tenemos que limpiar.
Nadia and I have to clean.

4. Ejercicios Tengo, tienes, tiene, tenemos, tienen.
1) He has to clean his room._____________________________
2) You (formal) have to study._____________________________
3) We have to exercise.__________________________
4) They have to cook._____________________________

5. Tener + ganas de + Infinitive
To say that a person feels like doing something say tener ganas de… and follow it with a verb in the infinitive. Only conjugate the verb tener.
Tengo ganas de estudiar. - I feel like studying.
Ella tiene ganas de bailar.-She feels like dancing.
Nosotros tenemos ganas de comer.
We feel like eating.

6. Ejercicios 1) I feel like singing.___________________________
2) You (inf.) feel like sleeping.__________________________
3) She feels like writing.____________________________
4. Yolanda and Oscar feel like dancing.___________________________

7. Hay + que + Infinitive
Hay que + Infinitive is used to express the idea that someone has to do something or that it is necessary that someone has to do something. There is not a subject in this expression.
Ejemplo:
Hay que limpiar la casa.
One must clean the house.
The house must be cleaned.
It is necessary to clean the house.

8. Ejercicios 1) It is necessary to study._____________________________
2) One must study.____________________
3) It is necessary to eat._______________________________
4) One must sleep.____________________

9. Ir + a + Infinitive
To express that someone is going to do something use the conjugation of Ir and add “a” and a verb in the infinitive.
Trinidad va a cocinar. (Trinidad is going to cook.)
Yo voy a caminar. ( I’m going to walk.)
Karina y yo vamos a viajar a Perú.
(Karina and I are going to travel to Perú.)
Eliza y tú van a dormir. (Eliza and you are going to sleep.)

10. Ejercicios Voy, vas, va, vamos, van.
1) I am going to swim.__________________
2) Patricia is going to run._______________________________
3) Ernesto is going to read.______________________________
4) You (inf.) and I are going to go to the school.____________________________

11. Two verbs in a row
Whenever you have two verbs in a row only conjugate the first one and leave the second one in the infinitive form.
Norma needs to swim.
Norma necesita nadar.
We should travel.
Nosotros debemos viajar.

12. I want to eat lunch.
Quiero almorzar.
She needs to study for her test.
Ella necesita estudiar para el examen.
We want to write a poem.
Queremos escribir un poema.

13. Ejercicios 1) I can dance._______________________
2) She wants to eat.___________________
3) We should study tonight.____________________________
4) You (inf.) need to clean._____________________________
5) I want to speak in Spanish.___________________________