Can you tell me if you've had plantar warts do you carry hpv?

Different strains. Hpv 1, 2, 4 cause plantar warts; hpv 6 and 11 cause anogenital warts. So yes, you have hpv, but maybe not the type that will transmit sexually.
One strain. The hpv is a family of viruses that include the 4 strains associated with sex (genital warts or cancer) , the plantar wart strain and many others. Having plantar warts does not mean you carry the strains associated with sex.