going to

We use will for a prediction based on past experience or knowledge, especially in predective conditionals, and be going to for prediction based on what we feel or think now.

We can use would or was/were going to when we describe a past prediction about future.

Se forma con el verbo"to be" conjugado para la persona correspondiente, seguido de "going to" y el verbo base.

"To be" + "going to" + verbo

Se forma con el verbo "will" + verbo

 

Oh, no, I think I´m going to be sick

We´ve just heard that kim´s going to have a baby

If you eat too much ice cream, you´ll be sick

We´ll do okay if the test isn´t too difficult

As soon as the victorious British team lands at Heathrow, thousands of fans will start celebrating

When I was a teenager. I thought I was going to be a rock star and I would never have to work

We use be going to for a decision, already made and will for a decision made at the moment.

Her parents have said they´re going to pay for her tuition

I´ve decided I’m going to get a new phone

I need someone to take this to the post office…I´ll go!

That´s the phone ringing…I´ll get it!

 les dejo unos enlaces para ampliar mas el tema.

ejercicios 

un poco mas de informacion

http://www.saberingles.com.ar/curso/lesson11/04.html 

http://www.ompersonal.com.ar/omgrammar/goingto.htm 

Conjugación del futuro: "going to"

El futuro going to se forma:

SUJETO + am/are/is going to +VERBO EN INFINITIVO

Conjugación	Significado
I am going to eat	yo iré a comer
You are going to eat	tú irás a comer
He is going to eat	él irá a comer
We are going to eat	nosotros iremos a comer
You are going to eat	ustedes irán a comer
They are going to eat	ellos irán a comer

La negación en el futuro going to

Para formar la negación se añade not después del am/are/is:

SUJETO + am/are/is not going to + VERBO EN INFINITIVO

I am not going to dance tonight

Yo no voy a ir a bailar esta noche

I´m not going to use the computer for around four hours

No voy a usar la computadora en aproximadamente cuatro horas

La Interrogación en el futuro "going to"

Para formar la interrogación se invierte el orden del sujeto y del verbo auxiliar to be, esto es:

am/are/is + SUJETO + going to + VERBO EN INFINITIVO ?

Are you going to dance tonight?

¿Vas a bailar esta noche?

Uso del futuro going to

El "future going to" se usa para:

    Acciones que se ha planificado realizar en el futuro, usualmente en un futuro cercano.

He is going to sing tomorrow night

Él va a ir a cantar mañana por la noche

Recuerda que si la acción no es planificada (decisión espontanea) se usa el futuro simple

La pasiva con el futuro going to

La construcción de la pasiva es:

[SUJETO] + am/are/is going to be +[PARTICIPIO]

Pasiva	Significado
I am going to be honored	yo voy a ser premiado
you are going to be honored	tú vas a ser premiado
he is going to be honored	él va a ser premiado
we are going to be honored	nosotros vamos a ser premiados
you are going to be honored	ustedes van a ser premiados
they are going to be honored	ellos van a ser premiados