• rop banana,
• fop banana,
• gop banana,
• yop banana,
• 6op banana,
• 5op banana,
• tip banana,
• tkp banana,
• tlp banana,
• tpp banana,
• t0p banana,
• t9p banana,
• too banana,
• tol banana,
• to- banana,
• to0 banana,
• top vanana,
• top nanana,
• top hanana,
• top ganana

The adjective form of "top banana" is "top-banana".

The plural form of the word "top banana" is "top bananas".

The singular form of the word "top banana" is "top banana". The term does not change when used in the singular form.