phoned
The past tense of phone is phoned.
The past perfect tense of phone is had phoned.
'Who' is a pronoun, it doesn't have a past tense. But you can use the word "was" as in "who was on the phone?".
Yes, "held" is the past tense of "hold." For example, "She held onto her phone tightly."
The past tense of "hung up" is "hung up." For example, "I hung up the phone yesterday."
Hung-up the phone.
It depends on the tense being used. Rang is the simple past tense of "ring". Rung is the past participle of "ring".
the past tense of am is was and the past tense of has is had
The past tense of "has" is "had" and the past tense of "have" is "had."
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
"will be" is the future tense of "be". The past tense of "be" is "was/were".
The past tense is she did.