What is the past tense of mic?

What is the past tense of mic?
Microphone verb forms

Infinitive
Present Participle
Past Tense

microphone
microphoning
microphoned

Microphone verb forms
Infinitive Present Participle Past Tense
microphone microphoning microphoned
See also  Dota 2's huge New Frontiers update makes the map 40% bigger