Used at the end of a sentence for emphasis or to soften the tone; formed when the previous word ends in the sound 'n', merging with the particle 啊 a.

(bound form) to shout or cry out loudly, used in phrases like 呐喊 nà​hǎn

Used at the end of a sentence to indicate an ongoing action or to ask a follow-up question; now usually written as 呢 ne.

(literary, bound form) to be hesitant or slow in speaking.