Tried is already in the past tense. It's the past tense of try.
Tried is the past tense.
The past tense of "try" would be "tried".
The future tense of try is will try, and the past tense is tried.
The past tense of "try" is "tried," and the past participle is also "tried."
Trial is a noun, and does not have a past tense.
3rd person present tense
"Try" in the past is spelled like this: tried.
Past tense. Present tense would be try.
Past: tried. Future: will try. going to try Present: I try, he tries.
tried out
tried
The past tense is trialed (US English) or trialled (British English)