1) The study's conclusions were solid, with strong underpinning from extensive research.

2) The company's success is underpinning by a strong customer base.

3) Legal precedents underpinning the case were thoroughly analyzed by the lawyers.

4) The principles of democracy are underpinning the constitution of the country.

5) A solid foundation underpins the stability of any structure.

6) The company's financial health is underpinned by its diversified portfolio.

7) Trust is underpinning every successful relationship.

8) Scientific principles underpinning the experiment were rigorously tested.

9) Moral values often underpin the decisions people make.

10) Strong teamwork underpinned the success of the project.