"With more practice, the team would have performed better."
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?"
Yes but you could make it much better. Search for advice on sentence and word structures.
The preposition that would be most correct in this sentence would be "of". However, "from" could also be used as well.
the verb is "practice"
Depending on the sentence, not unless could be the correct form.
The verb in the given sentence, "could be" is in a conditional present tense.
Him and I have a report to do.
The only way to get better at soccer is to practice, practice, practice! You could join a team or just practice at your house and play with your friends.
rule that could explain what makes a sentence grammatically correct or not before the noun."
"He could not have been there" is the correct sentence. It conveys the idea that he was unable to have been at the specified place.
You could get off to a better start by using the correct 'there' in the sentence. No wonder noone has answered. Who are you Christine O'donnell?
This sentence is grammatically correct.