Would Say or Said?

Just as "would say" is past tense of "will say", "would have said" is past tense of "will have said".

Would say Meaning?

From Longman Dictionary of Contemporary English I would sayused for giving your opinion even though other people may not agree I'd say he was jealous. → sayExamples from the CorpusI would say• Offhand, I would say a company director. • Well organized, a nice grasp of social interplay.

Will said or will say?

The main word is “say.” The present tense is “says,” the past is “said,” and the future tense is “will say.”