I don’t know her phone number. I can’t call her.
If I knew her phone number, I would call her.
He was ill. He couldn't come to the meeting.
If he hadn’t been ill, he would have been able to come to the meeting.
He doesn’t know the answer. I’m not surprised.
I would be surprised if he knew the answer.
We weren’t decisive. We lost a promising contract.
If we had been more decisive, we wouldn’t have lost a promising contract.
They lack the necessary qualifications. They cannot apply for the job.
If they had the necessary qualifications, they could apply for the job.
There was a public transport strike. You had to wait for me for two hours.
If there hadn’t been a public transport strike, you wouldn’t have had to wait for me for two hours.
The internet connection is down. We cannot access the website.
If the internet connection wasn't down, we could access the website.
The sun shone brightly in the sky. We enjoyed spending time outdoors.
If the sun hadn't shone brightly, we wouldn't have enjoyed spending time outdoors.
The company launches a new product every quarter. We eagerly anticipate each release.
If the company didn't launch a new product every quarter, we wouldn't have something to anticipate.
The professor explained complex concepts during lectures. We took detailed notes.
If the professor hadn't explained complex concepts, we wouldn't have taken detailed notes.