By Plurals, Common errors

Casual/Old I hate these knid of mistake! Formal I hate these knids of mistakes! Formal I hate this knid of mistake! 1. Some grammar books say only these kind of + singular noun is correct. These kind of mistake? If it sounds strange to your ears, you are probably right. Well, it is an old...

Thanks guys. I sought help from usingenglish.com too. The teacher there said that there only the second sentences are correct. He said the professor was 'perhaps, the original nutty professor' and the englishclub.com person didn't understand my question. But unluckily he didn't answer all my...

Dear sir, I have some inquiries about the choice of noun form (singular or plural) to be used with a plural possessive determiners (their, our, etc.) I have sought the advice of some native speakers on the following 4 sentences only to become more confused as they have different opinions. It is...