Validating form without submitting

I see that there are options for validating individual fields, and on submitting the form it validates all of them (having validations), is there a way to validate the form without having to submit it?
I have a flow wherein the fields are dynamically disabled and enabled as per form settings retrieved from DB, so need a way to validate the entire form without having to hit submit

Also wanted to know if there was a way I could get a response from a field validatation eg: true/false or failed/passed