To is the most common form. When to is used before a verb it forms part
of the infiinitive:-
For example: to learn, to do, to be, to drink...
"I need to make an appointment."
To is also a preposition, often used to indicate direction, which begins
a prepositional phrase.
For example: to the limit, to hell and back
Example: "Walk to the end of the street."
Too is an adverb meaning "extra or more than necessary" -
after all it has 2 Os - 1 too many?
For example: too much, too big, too small...
"The film was too long."
Cartoon by Michael Leunig © Republished with permission.
Too also means "also"
For example: me too
"I thought it was too long, too."
Two is a number - 2.
For example: one, two, three...
"I only drank two pints of beer."
We went to a football match. (preposition)
We like to watch a good film at the weekend. (infinitive)
We ate too much. (meaning "excessively")
I like baseball, too. (meaning "also")
Six divided by three is two. (number)
They own two cars. (number)
!Note - Many other words in English which reflect
the number two start with the letters 'tw'.
For example: twin, twice, twenty, tweezers, etc.
Try this famous song if you are still confused about to and too!