I like football very much. Who likes Manchester United? If you do, you're welcome to my page!

That's how I interpreted what you wrote. Remember the "he-she-it-rule" to know when to add -s to a verb e.g. If you refer to "he", "she" or "it", then you should add -s: "he likes cars" or "she laughs all the time" or "it wants you to feed it". But when it's plural you should not add -s: "they like cars"; "they laugh all the time"; "they want you to feed them".