Usage of the word "Am" [duplicate]

Am is the first person conjugation of the verb (V) to be.

I is the subject (S) as the first person.

The linguistic typology of English is "SVO". Normally, with no ellipsis, you should expect therefore to see:

I (S) am (V) {some predicate here}. (to be is a copula, so there is no object (O) for this construction)

E.g.:

I am sad. (adj)

I am John. (n)

I am going to the party. (vp)

You would see am first in an inverted construction, which is used often with questions, such as:

Am I late?

In other languages, such as Japanese, you may omit the subject. This leads to sentences such as:

学生(student)です(am)。

In transliterations of such text, you could expect to see am unaccompanied by I. But almost always that is not the case.