I was checking out some phrasal verbs of the verb Tear in Cambridge Dictionary, it shows all definitions of one single word, and my question is related to the phrasal verb Tear up, which means:
To almost cry due to a strong emotion that is being experienced.
Well, That's how Cambridge defines it and also provides some examples. This was the example provided by cambridge:
She teared up as the award was presented to her.
Why is it teared and not tore, since the past tense of the verb Tear is: Tore?
Is using "teared or tore" optional?