Despite what your English teacher may tell you, yes. But it's not always a good idea. But of course.
we all started at the same time
I started to work out two weeks ago.
nothing
The sentence is correct if you and the article 'a': "She started her journey a long time ago."
No, "suddenly" is not a complete sentence. It is an adverb that describes how an action is performed in a sentence.
"has started" is the simple predicate.
Yes, it is.
A simple predicate consists of only a verb or verb phrase. In this sentence the verb phrase is -- has started
theyhad arrived just before the meeting started.
When the physicist started talking about protons and neutrons, I started to daydream.
It depends on the subject of the sentence. (started with It)."Let us look at the facts placed before us," the judge said, looking towards the jury. (started with Let).There are lots of words that can start a sentence! (started with There).
She jumped the gun. She started at 3, when the other started at GO!