My grandmother taught me to make lentil soup

To make is it an adj adv or a noun I say it is a adv

Neither.

http://www.chompchomp.com/terms/infinitive.htm

To determine whether "make" in the phrase "to make lentil soup" is an adjective, adverb, or a noun, we can break down the structure of the sentence and analyze the function of each word.

In this case, "make" is a verb, not an adverb or a noun. The verb "make" indicates an action or process of creating or preparing something, such as cooking in this context. It describes the act of making or preparing lentil soup.

Here is an example to help illustrate the usage of "make" as a verb:
- "She makes delicious lentil soup."

As you can see, "make" is used as a verb in the sentence, describing the action of preparing lentil soup.

Remember, in English grammar, verbs typically function as the main part of a predicate, expressing the action or state of being in a sentence.