Future with "will" and "going to"

Will future expresses a spontaneous decision, an assumption with regard to the future or an action in the future that cannot be influenced.

Form of will Future

  positive negative question
no differences I will speak. I will not speak. Will I speak?

Going to future expresses a conclusion regarding the immediate future or an action in the near future that has already been planned or prepared.

Form of going to Future

  positive negative question
I I am going to speak. I am not going to speak. Am I going to speak?
you / we / they You are going to speak. You are not going to speak. Are you going to speak?
he / she / it He is going to speak. He is not going to speak. Is he going to speak?


Less and fewer

"Fewer" is for things you can count while "less" is for things you  cannot count.