The phrase "a firm base of" is correct and usable in written English.
It can be used when discussing the foundation or underlying support for an idea, argument, or structure.
Example: "To build a successful business, it is essential to have a firm base of loyal customers."
Alternatives: "a solid foundation of" or "a strong basis of".
Powell's technical accomplishments on the violin rested on a firm base of sensitive musicianship and understanding.
Also, a firm base of support among black voters in Harlem does not easily translate into solid black support citywide.
Experts concluded that well-coordinated core muscle use stabilizes the spine and helps create a firm base of support for virtually all movement.
"This time the acts of civil disobedience will be carried out with a firm base of support among the people of Vieques," Mr. Rabin said.
The shallow hole is needed so the plant can sit on a firm base of undisturbed soil that won't settle with time.
Building on a firm base of systematic, genetic, and ecological work on Heliconius and their relatives, these data give unrivalled information on the continuum between polymorphisms, races, semi-species, and species in nature.
He goes in for no deep psychological dredging, yet his novels rest on a firmer base of instinct and belief than is usual among the English comedians.
This structured approach has proven to be a firm base to the development of the envisaged model and enhances the model's integration in the design environment.
Sirtris Pharmaceuticals, a firm based in Cambridge, Massachusetts, of which Dr Sinclair is a co-founder, has identified a number of synthetic molecules whose effect on yeast is many times more potent than resveratrol's.
At Cue Ball, he has founded a firm based around the principles of being people-first, purpose-driven, and patient towards an objective of creating lasting change and durable value.
The UAE's unusual approach has its roots in the 2006 controversy that erupted when a firm based in Dubai, one of the seven emirates that make up the UAE, sought to take over the management of six U.S. ports.
