How do you write a good persuasive speech?

to write a persuasive speech you'll need lots of real evidence so people will agree what you are saying is true and

introdution:introduce your topic

body:evidence and facts

conclusion:(don't add any info)anything as long as it's about the topic you're doing

but don't add any info

eg:thats why you shouldn't do this (blah blah blah) so i gotto go now