to1 S1 W1 [used before the basic form of a verb to show that it is in the infinitive ]
used after a verb, noun, or adjective when an infinitive completes its meaning:
We tried to explain.
It was starting to rain.
The manager asked them to leave.
an attempt to escape
Have you got permission to stay here?
Our team's certain to win.
Are you ready to start?
This delicious dessert is easy to make (=you can make it easily).
used by itself instead of an infinitive in order to avoid repeating the same verb:
You can drive today if you want to (=if you want to drive).
I could have helped, but nobody asked me to.
used after a word such as 'how', 'where', 'who', 'what', or 'whether' to refer to an action about which someone is not certain:
I know where to go but I don't know how to get there.
She wondered whether or not to trust him.
used to show a purpose or intention:
They left early to catch the 7.30 train.
To find out more about university courses, write to this address.
We need more money to improve transport in London.
used to refer to an action or state, when describing it:
It's nice to be wanted.
He's finding it hard to cope.
To say I am disappointed is an understatement.
The simplest solution would be to increase the price.
used to say what can or cannot be done, or what should be done:
You'll soon be old enough to vote in elections.
He did not have the energy to resist.
I'm too tired to go out tonight.
used after the verb 'be' to give an order or to state arrangements for the future:
You are to wait here until I return.
They are to be married on May 25th.
used to say what someone discovers or experiences when they do something:
He arrived there to find that the last train had already left.
The princess stepped ashore to be greeted by an enthusiastic crowd of admirers.
She woke to see Ben standing by the window.
used to say what your attitude or purpose is in saying something:
I've never heard of him, to be quite honest.
To begin with, let's look at Chapter 3.