Determine point of view    why did parliament continue to clash with charles i, even after he had signed the petition of right?

The Petition of Right (1628), sought recognition of 4 principles: no taxation without the consent of Parliament, no imprisonment without cause, no quartering of soldiers on subjects, and no martial law in peacetime.

And even though Charles I signed it, primarily because he had no choice if he wanted to keep receiving the parliament's subsidies for his policies, he later ignored the Petition and continued to govern without the advice and consent of Parliament, levying of tonnage and poundage, imprisoning people without a valid cause, etc.

the northwest ordinance of 1787 guaranteed basic rights for settlers and banned slavery there.