To describe a past action or event in Engpsh, you can use the past tense. In the past tense, the verb "vibrate" becomes "vibrated."
For example:
The phone vibrated on the table. (This describes a past action.)
The earthquake caused the ground to vibrate. (This describes a past event.)
You can also use the past participle form of the verb, which is "vibrated," to form verb tenses such as the past perfect tense. For example:
The phone had vibrated several times before I noticed it. (This describes a past action that was completed before another past action or event.)
I hope this helps! Let me know if you have any other questions.