Portuguese: Formation of Plurals Online version Practice of changing singular nouns into the plural version. by Sophie Donne 1 Nouns ending in VOWEL a Change into - ais b Change into - ns c Add - s d Add -es 2 Nouns ending in NASAL DIPHTHONGS a Add - s b Change into - ões c Change into - eis d Add - es 3 Nouns ending in -N, -R, -S, -Z a Change into - uis b Add - es c Add - s d Change into - āes 4 Nouns ending in - āo a Change into - ais b Change into - ões c Add - s d Change into - ois 5 Nouns ending in - M a Change into - ns b Add - s c Add - es d Change into - uis 6 Nouns ending in - AL a Change into - ois b Change into - ões c Add - es d Change into - ais 7 Nouns ending in - EL a Change into - uis b Change into - ns c Change into - eis d Add - s 8 Nouns ending in - OL a Add - es b Add - s c Change into - ões d Change into - ois 9 Nouns ending in - UL a Change into - uis b Change into - eis c Change into - is d Add - es 10 Nouns ending in - IL (Stressed) a Change into - ns b Change into - eis c Add - es d Change into - is 11 Nouns ending in - IL (Unstressed) a Add - s b Change into - eis c Change into - is d Change into - uis 12 Which nouns remain UNCHANGED? Written answer 13 What are the exceptions to the - ão rule? Written answer 14 What are the exceptions to the - al rule? Written answer 15 What are the exceptions to the - ul rule? Written answer