This is the 5277th most frequent Japanese word.
am
The Japanese word "am" does not exist; perhaps you meant a romanized term.
The word 'am' is represented by 'です' in this sentence, which is a copula used to link the subject '私は' (I) to the complement '学生' (student).
私は学生です。
I am a student.
Here, 'am' is again represented by 'です', connecting '私は' (I) with the state descriptor '元気' (fine/healthy).
私は元気です。
I am fine.
'Am' in this sentence is signified by 'います', which is a verb used to describe existence or presence of animate subjects.