"I could have been a great doctor if I had had enough money to pay for medical school."
The correct sentence would be "He could not have been there". This is because 'can' is in the present tense and doesn't agree with the rest of the sentence.
yes. I have been to a reef.
Sure: "I mourn the loss of what could have been."
Example sentence - If they would have been considerate of their hosts and not self-invited, accommodations could have been plentifully dispersed.
It depends on what you're trying to say. If you had the possibility of being a doctor, you could have been a doctor. If it was in your best interest to be a doctor, you should have been a doctor. Or if you're trying to distinguish between "could of" and "could have", it should be, you could have been a doctor.
The flood's effect could have been delayed by this overflow basin.
A good sentence could be: Does she have her hair colored? Yes, she has had a dye job. I have to go to the store, she has not been there yet.
That can not be said in a sentence.
While Kathy's fall was painful, it could have been worse.
Yes, had and had are correct. You could drop the first 'hand' and still have a good sentence. BUT who is "They"? and who is "her"? That makes the sentence confusing. You could change it to: Cathy's parents had just arrived, but her husband had been staying nearby for a while.
We listed every state we've been to for our homework assignment
my mother always have been a sparing woman