The technically correct answer to your question is "lighted."
The past participle form for regular verbs are the same thing as past tense. Light is technically a regular verb, so therefore you would use a past participle form (adding ed, d, t,) to the base form to come up with the past participle (past tense).
However, English is a living language and relational words (nouns, adverbs, adjectives, verbs) have the ability to change form and meaning over time due to popular acceptance, culture, etc. so another acceptable and commonly used form for the past tense of light is "lit." The ability to use both lighted and lit correctly essentially makes the verb "light" both a regular and irregular verb at the same time.
The past tense of "light" is "lit" or "lighted." The past participle is also "lit" or "lighted."
The past tense is was or were.The past participle is been.
The past tense of "light" is "lit" or "lighted," and the past participle is also "lit" or "lighted."
The past tense of "being" is "was" and the past participle is "been."
The simple past tense is did. The past participle is done.
The past tense of "has" is "had" and the past participle is also "had."
past perfect is had + past participle. The past participle of light is lit.had lit
The past tense is was or were.The past participle is been.
The past tense of "be" is "was" for singular subjects and "were" for plural subjects. The past participle is "been."
The past tense and past participle are both had.
The simple past tense is did. The past participle is done.
The past tense of "being" is "was" and the past participle is "been."
The past tense of "stand" is "stood," and the past participle is also "stood."
The past tense of "lend" is "lent" and the past participle is also "lent." For example: "Yesterday, I lent him a book."
Accelerated is the past tense and past participle.
Groaned is the past tense and past participle.
Got is the past tense of get. Gotten is the past participle.
The past tense of "clap" is "clapped", and the past participle is also "clapped".