They didn’t eat any breakfast. They’re hungry now.
If they had eaten, they wouldn’t be so hungry now.
I’m not going to have a day off tomorrow because my boss asked me to go on a business.
If my boss hadn’t asked me to go on a business, I’d have a day off tomorrow.
I've forgotten my wallet at work. Now I can't buy food.
If I hadn’t forgotten my wallet at work, I could buy food
His sister is so extravagant; she spent most of her money on clothes and expensive restaurants
If his sister weren’t so extravagant, she wouldn’t have spent most of her last money on clothes and expensive restaurants.
He's so bad-tempered. He had an argument with his parents yesterday
If he weren't / wasn't so bad-tempered, he wouldn't have had an argument with his parents.
He isn’t driving carefully. He crashed the car into a tree.
if he was driving carefully, he wouldn’t have crashed the car into the tree.
I didn’t book seats. We can’t go to the concert tonight.
If I had booked the seats, we could go to the concert tonight.
She isn’t at the meeting because she got ill.
She would be at the meeting if she hadn't been ill.
He didn’t take the medication, so he is sick now.
If he’d taken the medication, he wouldn’t be sick now.
She can’t use her credit card today. The bank blocked it.
She could use (be using) her credit card today if the bank hadn’t blocked it
You don’t pay attention. You made so many mistakes.
If you paid attention, you wouldn’t have made so many mistakes.
Susan is inexperienced. She didn’t take the job.
If she was experienced, she would have taken the job.
Alex rescued a woman with a child from a burning house; he is an incredibly brave man
Alex wouldn’t have rescued a woman with a child from a burning house if he weren’t an incredibly brave man.
Helen speaks French fluently because she lived in Paris for eight years.
If Helen hadn’t lived in Paris for eight years, she wouldn’t speak French fluently
He didn’t train every day. He won’t win the race.
If he had trained every day, he would win the race.
I don’t know him very well. I didn’t invite him to my party.
If I knew him very well, I would have invited him to the party.