-i
Plural form for nouns ending in ë (replaces final e)
Plural form for nouns ending in consonants (appended)
-r
Plural form of nouns ending with -a, -o, -i and -u as well as -ië (in nominative)
Also appends verbs in order to agree in tense
-a
Present tense basic verb ending (of verb ends in -a, ending changes to -ëa)