Pronouns in the NOMINATIVE case may often be deleted from a sentence since their semantic information is repeated by the PNG marker of the verb. When there is ambiguity, as in the 1st person plural (both ¼Ôõ´ naanka `exclusive' and ¼Ô¾ naama `inclusive' take the same PNG marker Ñ£ -oom), deletion is rarer. However, it may still occur, even with modals and negatives, where there is no PNG marking on the verb. Thus in a sentence like ¼Ô¨ Ø½ÔØÅ¨ naan pooreen `I am going' the ¼Ô¨ naan can be deleted to get just Ø½ÔØÅ¨ pooreen, which is still unambiguously `I go'. But a sentence like ¼Ô¨ Ø½Ô´ÁÔ¾Ô? naan poohalaamaa `May I go?' or ¼Ô¨ Ø½Ô´§×Á naan poohalle `I didn't go' may also have the pronoun deleted, with the resulting Ø½Ô´ÁÔ¾Ô? poohalaamaa `May (someone) go?' and Ø½Ô´§×Á poohalle `(Someone) didn't go' ambiguous as to person; mother-tongue speakers know from the context what or who is meant, but novice learners may be confused.
As a rule of thumb, delete only when no ambiguity will result. For emphasis, leave the pronoun in, e.g., ¼Ô¨ Ø½ÔØÅ¨ naan pooreen 'I will go.'