The word to is used in expressions like to walk, to run, to paint, etc. (These are all verbs in their infinitive forms.)
The Word To in an Infinitive VerbOccasionally, there is confusion over the words to and too. The word to has two uses. The one covered on this page is the use of to to show the infinitive form of a verb.
All the uses of to and too are shown in the lesson the difference between to and too.
Summary of To and TooThis infographic summarises the different uses of to and too:
Verbs are doing words like to dance, to sit, to fly, to think. (See lesson Verbs.)
When to is in front of a verb, the verb is said to be in its infinitive form.
As explained above, the infinitive form of a verb comprises of to and the verb itself (e.g., to laugh). It is a good idea to avoid putting any words between them. This is called a split infinitive, which lots of your readers will probably consider an error. (More on that below.)
What are verbs?
To and too (meaning as well)
To and too (meaning in excess)
To (preposition) and too