Must: deber (Prácticament un deber moral).
*Acompaña siempre a otro verbo
I must read this book.......Debo leer este libro.
you must work hard.........Debeis trabajar duro.
He must listen to me.......Debe escucharme.
we must go to town.........Debemos ir a la ciudad.
they must live together....Deben vivir juntos.
* Como verbo modal no tiene infinitivo en TO. (No existe el infinitivo TO MUST)
to read..........leer
to work..........trabajar
to listen to.....escuchar
to go.............ir
to live............vivir
pero:
must...........deber
* En presente no añade -S en la 3era persona del singular (he,she,it)
I must
you must
he,she,it must
we must
they must
I must study every day
Debo estudiar cada día.
you must go to bed early.
Debes acostarte temprano.
he must copy the text.
Debe copiar el texto.
we must do our homework.
Debemos hacer nuestros deberes.
they must watch the movie.
Deben ver la película.
Sin embargo otro verbo:
I read
you read
he,she,it reads
we read
they read
* Su forma negativa es: MUST NOT o MUSN'T
I must not sleep................I musn't sleep
you must not sing............You musn't sing
he,she,it must not speak.He musn't speak
we must not play..............we musn't play
they must not run............They musn't run
to sleep (dormir)
to sing (cantar)
to speak (hablar)
to play (jugar)
to run (correr)
I must not sleep................I musn't sleep
you must not sing............You musn't sing
he,she,it must not speak.He musn't speak
we must not play..............we musn't play
they must not run............They musn't run
to sleep (dormir)
to sing (cantar)
to speak (hablar)
to play (jugar)
to run (correr)
* Realiza la interrogativa por inversión con el sujeto:
Así:
Must I go back home?
Must you leave your hometown?
Must he clean his car?
Must we paint our house?
Must they travel to Paris?
They must.....Must they...?
Así:
Must I go back home?
Must you leave your hometown?
Must he clean his car?
Must we paint our house?
Must they travel to Paris?
¿Debo regresar a casa?
¿Debes abandonar tu ciudad natal?
¿Debe limpiar su coche?
¿Debemos pintar nuestra casa?
¿Deben viajar a Paris?
MUST TAMBIEN EXPRESA LA IDEA DE PROBABILIDAD:
YOU MUST BE TIRED
.....DEBES ESTAR CANSADO (Es probable)
MUST TAMBIEN EXPRESA LA IDEA DE PROBABILIDAD:
YOU MUST BE TIRED
.....DEBES ESTAR CANSADO (Es probable)
HE MUST HAVE A LOT OF FRIENDS
..DEBE TENER MUCHOS AMIGOS (Es probable)
..DEBE TENER MUCHOS AMIGOS (Es probable)