Is I show you a toad. a correct sentence?

The sentence, 'I show you a toad.' is only missing an auxiliary verb (helper verb) to clarify the main verb 'show'. Examples:

I will show you a toad. (...if you want me to.)

I can show you a toad. (...because I have one in my pocket.)

I may show you a toad. (...if I can find one.)

I want to show you a toad. (...but I can't find one.)

I was going to show you a toad. (...but you don't like getting your shoes wet.)

I won't show you a toad. (...because you find them creepy.)

An auxiliary verb helps the person you're talking to put your statement into context.