USED TO …
Se usa used to + verbo para hablar de habitos ya pasados y para hablar de estados pasados. Ejemplos: Hábito: I used to play the guitar. Significa que antes tocabas la guitarra pero ya no. Estado: I used to live in London. Significa que antes vivias en Londres pero ya no. Se forma: se usa la misma forma con todas las personas Afirmativos: I you he/she/it + used to + verbo we they ejemplo: I used to play football, he used to play football, we used to play football etc...
NEGATIVOS: I you he/she/it + didn't use to + verbo we they ejemplo: I didn't use to play football, he didn't use to play football, we didn't use to play football etc... Preguntas: Did + use to + verbo ejemplo: Did you use to smoke? (¿Solias fumar?) What did you use to do....? (Que solias hacer...?) Ejemplo: Did you use to play football? Did he use to play football?...... Respuestas cortas: Did you use to play football? (¿Solias jugar al futbol?) Yes I did No I didn't
Used to / would Usamos "used to" para hablar de hábitos del pasado. De cosas que pasaban frecuentemente en el pasado pero que ya dejaron de suceder . Es seguido siempre por el infinitivo del verbo.
John used to smoke a lot, but he gave up. John solía fumar mucho pero dejó.
Lord Albert used to go hunting when he was younger. Lord Albert solía ir a cazar cuando era joven.
I used to go to school by bike, but now I go by car. Solía ir a la escuela en bici, pero ahora voy en auto.
El verbo modal "would" también se puede usar para expresar hábitos del pasado:
In class, I would often sit at the back. En clase, a menudo solía sentarme en la parte de atrás.
After dinner, my father would always drink a glass of brandy. Luego de la cena, mi padre siempre solía tomar una copa de brandy.
As a child, Martin would never talk to strangers. De niño, Martin nunca hablaba con extraños.
También lo usamos para hablar de cosas que eran verdaderas pero dejaron de serlas.
There used to be a wall here. Solía haber una pared aquí.
Mark used to have a dog but he gave it away. Mark solía tener un perro pero lo regaló.
Structure of Used to do The structure is:
subject
Auxiliary did
+
I
-
I
did
?
Did
you
not
not
main verb use
infinitive
used
to do.
use
to do.
use
to do?
Used or use?  
when there is did in the sentence, we say use to (without d) when there is no did in the sentence, we say used to (with d)
Look at these examples. the past
the present
She used to work in a shop.
Now she works in a bank.
He used to watch a lot of TV.
Now he doesn't watch much TV.
They used to be married.
Now they are divorced.
There used to be a cinema here.
Now there is a supermarket here.
I didn't use to go swimming.
Now I go swimming.
Did you use to smoke?
used to As we studied in Advanced Lesson 2 "used to" can be used to express past habit.. I used to walk to school. Caminaba a la escuela.
NOTE: In the negative form the word "didn't" indicates that the sentence is negative so "used to" changes to its basic form "use to". Similarly, in the question form the word "Did" indicates that the sentence is negative. I didn't use to walk to school. Did you use to walk to school?
be used to (estar acostumbrado) We use the verb "to be" together with "used to" to express that we are accustomed to something. I am used to exercising every day. Estoy acostumbrado a hacer ejercicio todos los dĂas.
get used to (acostumbrarse) We use the verb "get" together with "used to" to express that we are becoming accustomed to something. I am getting used to waking up early. Me estoy acostumbrando a levantarme temprano.
NOTE: The word "get" can be used with many adjectives to mean "se." get sick - enfermarse
get used to - acostumbrarse get engaged - comprometerse get drunk - emborracharse get married - casarse get tired - cansarse get divorced - divorciarse get bored - aburrirse NOTE:
"be used to" and "get used to" are used with the gerund (the -ing form of the verb) while "used to" is used with the infinitive (the basic form of the verb). I used to walk. I am used to walking. I get used to walking.