IF-Conditional vs Future Unreal Conditional?

Teachers, is this conditional sentence a mixed conditional?

If he was going to do something crazy, he would’ve done it by now.

I suppose the IF conditional of the above is the future unreal conditional, or would it be just a real past conditional?

Please help!!! Thanks so much!

Hi Lovely,

Technically, according to the ‘grammar books’ this is an example of a so-called second conditional and a third conditional. If you used the ‘full’ third conditional’ it would be: If he had been going to …,he would have done it… The tense of ‘If he was …’ is past condtional and the 'would have done ’ is perfect conditional. Having said all that, I have to say that the sentence is perfectly acceptable.