I Always Speak the Truth. Correct the Sentence

Answer : The sentence presented is appropriate. The following sentence appears grammatically accurate and has no errors. “I” is indeed a singular first person pronoun within this phrase, and due to the principle, such singular third person must be accompanied by that singular verb that is clearly proper in the provided sentence, “Speak.” This noun within this phrase is “truth,” this adverb is “always,” which expresses the period of time, as well as the verb is “say.” This statement satisfies all of the grammar-based standards.