Adjective agreements

Adjective agreements are similar to nouns.  If a word end in -o it is masculine and if a word end in -a it is feminine.  If you want to make it plural, just make sure you add -os or -as.  Also i learned that when you are using adjectives, the adjective comes after the noun. So instead of saying green chair, you would say in spanish silla verde. I learned that adjectives that end in -o you would use o, a, os, as and adjectives ending with other vowels or constants you would use -s or -es.