Japanese Sentence structure : Noun 1 wa Noun 2 desu

The idea "Alice san is a student."is expressed in Japanese as :
Arisu san wa gakusee desu. "Alice san is a student."

ln the above example, desu is equivalent to English "is." Desu is placed at the end of a sentence. You should not say "Arisu san wa desu gakusee."

Examples
1. Arisu san wa Ejiputojin desu.
"Alice san is an Egyptian."
2. Ruin san wa gakusee desu.
"Mr. Lwin is a student."
3. Ruin san wa sensee desu.
"Mr. Lwin is a teacher."
The negative form of desu is ja arimasen.
The perfective form of desu is deshita.
The negative form of deshita is ja arimasen deshita.

Examples
1. Arisu san wa Birumajin ja arimasen.
"Alice san is not a Burmese."
2. Ruin san wa sensee deshita.
"Mr, Lwin was a teacher."
3. Ruin san wa gakusee ja arimasen deshita.
"Mr. Lwin was not a student."