Except in very rare cases when both parties are ready to split, you can't. It is a bit of an insult, like saying "I am downgrading you from lover down to friend, isn't that nice?" Really you have to get the breakup done and then, just maybe, you can become friends down the road. The only thing you can make sure of is that you behave honestly and honorably during the split, and then hope that makes the breakup less hurtful.
You can't control whether or not another person's feelings get hurt. All you can do is be as considerate as possible when breaking up. However, I do not suggest you ask him to be "friends" when breaking up, because they may take that as a sign you might change your mind and they still have a chance with you.
"Advice is what we ask for when we already know the answer but wish we didn't." - Erica Jong
All you can do is be respectful and honest. But if you make the decision to end the relationship, you have to accept that losing that person is a consequence. Yeah, I like Seraph's description of it, being downgraded or demoted from lover and significant other to friend. I personally don't believe ex lovers should even try to be friends unless the break up was mutual and both parties are truly and completely over it and have no romantic feelings left for each other and both can pretty easily move on. But it sounds like that won't be the case here.
Thank you you guys all of you are helpfull I guess you're rite larrylou's mom I have to know that I might lose him completely friend and lover everything but its hard like its not like I dont like him as a friend it's just that I don't have any romantic feelings anymore its hard but what else am I supposed to do? I no he still loves me a lot but I just don't feel the same way so I will end it because i'd rather not lead him on. Thanks again you guys I really appreicate it.