No No answers a yes/no question. "No, the president wasn't surprised by the results of the election." No precedes a noun that has no article. The company had no worthy rivals in the industry. No can be used before a noun that is preceded by an adjective, as in the preceding example, but it is not used before any, much, many, or enough. Jim has no argument with which to continue the discussion. The manager had no reason to support his request for a raise.

Not Not precedes a noun that has an article. The virus is not the source of the outbreak. Not precedes any, much, many, or enough. Not many amateur astronomers can afford the equipment necessary to study the nova. There is not much budget left for another trial. Not makes a verb negative. They do not want to proceed with the experimental study. Note: No and not are never used in the same sentence.

use 'no 'before nouns to mean not any or to say that something is not allowed. he has no job and no money.a "no smoking " sign. you can also use no to disagree , refuse or give a negative answer are you busy? no. use ;not'to make a verb negative: i'm not going to the park.also use not for negative: not all the students finished the test. also use not before names, pronouns, adverbs,frequency and prepositions not tom. not me not yet it's on sunday not monday, and so on i hope this helps.

Don't try to learn that in a hurry. This is a tough question.

oh... your question really help me. thanks to u and to people who give their answer