H4 EAD to H1B Cap Exempt

HI
I got converted to H4 EAD in 2017, prior to that I was on H1B and I had my 1140 approved and my H1B validity expired in 2019. Currently I am working on H4 EAD. My question is can I apply for H1B extension in Cap Exempt category?

Yes, you can, if you have not used up all 6 years. Check H1B Recapture rule