The PM is to give a speech

Hi teachers

What is the difference between

The Prime Minister is to give speech tomorrow. and

The Prime Minister is going to give speech tomorrow.

What about The Prime Minister has to give speech tomorrow?



Hi Lion,

Yo write three sentences:

I have added the indefinite article ‘a’, which is needed here. There is a slight difference in the three cosnstructions:

is to is used when something has been planned or arranged beforehand
going to simply means has the intention of and is used as a way of expressing a future form
has to is an alternative to must


Hi Lion

“Has to” is extremely standard. There’s nothing terribly formal or informal about using have to. It’s used in all kinds of speech and writing.

It simply indicates that you are required to do something.