To-Long-Too-Long | Commonly Confused Words

To long

To desire something deeply or to have a strong wish for something.

/tuː lɒŋ/

Lasting or taking more time than desired or necessary.

To is a preposition or part of an infinitive verb, not used to describe length or duration.
Too with two os is an adverb that means excessively or additionally.
Remember: If you mean excessively or to a greater extent, use too with an extra o.
To is more often followed by a verb while too is usually followed by an adjective or adverb.
If you can replace the word with also, it should be too.