Let’s all go to park.
In the above example sentence, to is used to represent the action of going to park. To as infinitive marker: To is also used as an infinitive marker where it is used without the verb to represent something.
She asked me to come but I didn’t want to.
To vs. Too The to at the end of the example sentence shows that it represents to come but it is used without it but still give the same meaning. Too as adverb: Too is used as an adverb where it means also.
He gave me pizza too.
This tea is too sweet.