The phrase "a sufficient form" is correct and usable in written English.
It can be used when discussing whether a particular format or structure meets the necessary requirements or standards.
Example: "The document must be submitted in a sufficient form to ensure it is accepted by the committee."
Alternatives: "an adequate format" or "a proper structure".
In this paper we address several questions: Are shareholder votes a sufficient form of voice that catalyzes trades across the board?
The second reason is that people believe photos are a sufficient form of approval.
For some, "I'm a retard" is a sufficient form of an apology.
He notes that many teachers consider the final product to be a sufficient form of assessment, but Berger says, "If the teacher isn't assessing all along the way then the final product will not typically show the high quality of success".
We exist now in an echo-chamber of blogs and Facebook pages where "my friend told me" is a sufficient form of fact-checking and where a demonstrable misstatement of the truth can move from one person's web page to a search engine to a very large audience quite literally in a matter of moments.
Mr. Kidd said "a handshake would be a perfectly sufficient form of greeting".
While biometrics can sometimes be used to verify your identity, passcodes like PINs are considered a more sufficient form of proof, which is kind of counterintuitive.
You can also appear with an identifying witness, who will need their own sufficient forms of ID.[2].
Too much recent art suggests that living in your head is only a beginning and attitude is rarely a sufficient substitute for form.
"There is not a sufficient majority to form an anti-memorandum front," said Panos Kammenos, whose party came fourth in Sunday's elections.
Importantly, the initiation of plate tectonics requires moderate lithospheric thickness and faulting on a sufficient scale to form plate boundaries (e.g., Nimmo and McKenzie 1998; Tackley 1998, 2000); therefore, the lithosphere must have moderate strength (≤200 300 MPa) for plate tectonics to occur.
