メキシコ合衆 がっしゅう こくじゃなかったです
mekishikogasshūkokujanakattadesu

Noun
Desu Copula

The polite, past negative form of メキシコ合衆国

1. Wasn't Mexico.; Wasn't the United States of Mexico.

Past/Perfective
Negative
Polite
Casual Register