The aunt SUPPRESSED a gasp of admiration.

What is the principal part of SUPPRESSED?

-present
-present participle
-past **
-past participle

Yes, right.

past

The principal part of the verb "SUPPRESSED" in this sentence is "past."

To determine the principal parts of a verb, you start with the base form, which is the simple present tense. In this case, the base form of the verb is "suppress." Then, you can form different tenses and verb forms by conjugating it. In the sentence given, the verb "suppress" is in the past tense, indicating an action that has already happened. Therefore, the principal part is "past."