What is the principal part of the italicized verb in this sentence from “The Story-Teller”?

The aunt suppressed a gasp of admiration. (Note: suppressed is the italicized verb)
1. present
2. present participle
3. past
4. past participle****

5 answers

No. Past participles need a helping verb.
So it would be C!! Right?
Yes, it's past tense.
Thank you!
You're welcome.