No, the word 'to' is a preposition, an adverb, and an infinitive marker (used before the base form of a verb to show that the verb is in the infinitive). A deter
…miner is a word used before a noun to "determine" the precise meaning of the noun. A determiner can be the definite article 'the' or the indefinite articles 'a' or 'an'. A determiner can be a possessive adjective: my, your, his, her, its, our, their, or whose. A determiner can be a demonstrative pronoun: this, that, these, or those. A determiner can be an adjective (called a quantifier) that describes the quantity of a noun: all, every, most, many, much, some, few, little, enough, any, no. A determiner can be a number: one, first, two, second, three, third, etc. Example of the word 'to' as a preposition: I sent an email to the supplier. Example of the word 'to' as an adverb: When I came to, the EMTs had already arrived. Example of the word 'to' as an infinitive marker: I go out every morning to run. Example use of determiners: I sent an email to the supplier. When I came to, the EMTs had already arrived. I go out every morning to run. I don't know whose keys those are. I like those flowers. We brought some ice cream. The meetings are held on the first Tuesday of each month. (MORE) 
