✔ 最佳答案
Yes, they are auxiliary verbs.
I am (auxiliary verb) jogging(present participle).
He is (auxiliary verb) washing (present participle) his hands.
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We should talk about past events with the past tense.
It is (auxiliary verb) washed(past participle) by him.
They are(auxiliary verb) traced (past participle) by her.
It was 助動詞washed(past participle)by him.<-----------------------More logical
They were 助動詞 traced(past participle) by her.<----------------More logical
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