• pingpong,
• oing-pong,
• ling-pong,
• -ing-pong,
• 0ing-pong,
• pung-pong,
• pjng-pong,
• pkng-pong,
• pong-pong,
• p9ng-pong,
• p8ng-pong,
• pibg-pong,
• pimg-pong,
• pijg-pong,
• pihg-pong,
• pinf-pong,
• pinv-pong,
• pinb-pong,
• pinh-pong,
• piny-pong

The adjective form of the word "ping-pong" is "ping-pong".

The plural form of the word "ping-pong" is also "ping-pong." It is an uncountable noun which does not change in its plural form.

The singular form of the word "ping-pong" is "ping-pong".