Once upon a time...
did start
The past tense of sentence is "sentenced".
one sentence for past
Past tense of "be" are: I was... You were... He/She/It was... We were... (or We're...) They were... Example: I was at the movies last night.
What was the past tense for this sentence.
Yes, you can start a sentence with "Was" when using it to form a question or to provide context for a past event. For example, "Was she at the party last night?" or "Was the meeting on Monday productive?"
Past is being used as a noun in that sentence.
The verb laughed is past. The sentence is past simple.
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
The past tense is started.
"Rang" is the past tense of the verb "ring." For example, "She rang the bell to signal the start of the event."
Yes, I can start a sentence with "Is."