Final answer:
The sentence 'Green is my favorite color' correctly contains the uncontractible copula BE ('is'), which is mandatory as it serves as the main verb linking the subject and the adjective.
Step-by-step explanation:
The sentence 'Green is my favorite color' contains an obligatory context for the uncontractible copula BE (am, are, is, was, were). This statement is true.
In this sentence, 'Green' is the subject and 'is' is the uncontractible copula BE that links the subject to the complement or adjective phrase, 'my favorite color'. The copula 'is' is obligatory because it is the main verb that links the subject with the adjective that describes it, which is a necessary component in the sentence structure.
The sentence 'Green is my favorite color' is an example of an obligatory context for the uncontractible copula BE. This means that the sentence structure requires the use of 'is' as the uncontracted form of the copula verb 'be'. The copula verb 'be' is used to identify or describe the subject of the sentence, in this case 'Green'. Therefore, the statement is true.