I swear that they were available a few months back. I regret that I didn't register all of them immediately. I kept on delaying. I know it is my fault. I am aware (suspect) that somebody out there is monitoring our domain registration and yet I did not follow the advises I have always given to others. Register the singular and plurals of your domains immediately.
What I wanted to know is, is it possible that the registration date in the Whois database is fake? Because I wonder how come those domains were available back then when I tried to register the singular version of the domain names but not now. When I checked at the Whois database it shows that they were registered long before I registered and they are expiring either this year or next year. So, I begin to suspect that the registration date in Whois is fake.
Then again, it's all just a bunch of networked computers and we know how reliable and secure such systems are. :0)