The phrase 'valuable and constructive' is correct and usable in written English.
You can use it to describe something that is both useful and has potential to benefit in a constructive way. For example, you might say "The feedback I received from my colleagues was valuable and constructive."
The announcement led to a valuable and constructive conversation about open access and the Wikimedia movement.
Encourage your kids to seek in-person, valuable and constructive feedback from friends and family members rather than creating space for people they don't know to potentially insult them.
The authors also thank Duygu Tufekci, Rachid Omira, and the anonymous reviewers for their valuable and constructive comments.
Forrst aims to be a design community for "sharing work and inspiration, getting valuable and constructive feedback and ultimately getting better at your craft".
The authors want to thank the reviewers for their valuable and constructive comments and suggestions which helped to improve the manuscript.
Having attended several State Department Iftars myself, I know firsthand how valuable and constructive official U.S. government overtures to Muslims at home and abroad can be.
In drafting these principles, we received a lot of valuable help and constructive criticism from a variety of sources.
We thank two anonymous reviewers for their valuable suggestions and constructive comments, which have considerably improved the quality of the manuscript.
Professor Anton P. Barten was the one who did not only give me a warm welcome in Louvain, but also supported my research with most valuable comments and constructive criticisms.
We greatly appreciate Zhenbiao Yang (University of California at Riverside) for his valuable suggestions and constructive comments on this work and the manuscript.
As well, we thank two anonymous reviewers for their valuable comments and constructive suggestions.
