If you occasionally use a false subject, make that sentence very short. It is extraordinary how warm the weather is for July. It has been observed that a certain ambivalence prevails. It will be in the Town Hall that Pavarotti sings next Tuesday. The weather is extraordinarily warm for July.
Many people are ambivalent.
OR We have observed a certain ambivalence. Pavarotti will sing in the Town Hall next Tuesday. Miniwords are essential to English. But if a sentence is mostly miniwords, the sentence may confuse people who are learning English. Some miniwords have many meanings, so they are hard to decipher from a dictionary.