"if Ivan doesn’t study, next he will come to nothing the Chemistry test"?

what are the counterexamples(conditional, inverse, converse, and contrapositive) for this statement?
The conditional is what you've written

Inverse - If Ivan does study, then he will not fail the Chemistry Test

Converse - If Ivan fails the Chemistry trial, then he doesn't study

Contapositive - If Ivan does not fail the Chemistry test after he studies.

Something like that

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