This (i) plan is (ii) sound both in (iii) principal and (iv) practice. vs This (i) plan is (ii) sound both in (iii) principle and (iv) practice.

The correct phrase is: "this plan is sound both in principle and in practice." The word "principal" refers to a person in a leading position or to the most important part, while "principle" refers to a fundamental truth or belief. Therefore, in this context, "principle" is the correct term to use.

Last updated: March 28, 2024 • 704 views

This (i) plan is (ii) sound both in (iii) principal and (iv) practice.

This phrase is incorrect. The word "principal" is not the appropriate term to use in this context.

The correct term to use in this context is "principle," which refers to a fundamental truth or belief. Therefore, the correct phrase is "this plan is sound both in principle and in practice."

This (i) plan is (ii) sound both in (iii) principle and (iv) practice.

This phrase is correct and commonly used in English. The word "principle" is the appropriate term to use in this context.

Use this phrase when describing a plan that is effective both in theory (principle) and in reality (practice).

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This (i) plan is (ii) sound both in (iii) principal and (iv) practice. vs This (i) plan is (ii) sound both in (iii) principle and (iv) practice.