Can I first apply for full-time CPT and then switch to part-time CPT?

I know that if full-time CPT exceeds 12 months, I won’t be eligible for OPT after graduation, whereas part-time CPT has no such restriction. Can I first apply for full-time CPT, work full-time for 12 months, and then switch to part-time CPT to continue working? Would switching from full-time to part-time CPT raise any suspicions with USCIS?

Yes you can you use full time CPT for 11 months and then change to par time

Are you sure? 100 months???

My bad lol. Revised.