How to do combos

I like this game but so hard online,how do people do like 5 and 6 punch combos I be lucky if i do a 2 punch combo...I also use the stick where people I have fought online say it is better to use buttons to get your combos off quick...

Need help....please....

if you are also a novice and want a match my gamer tag is BADBOYZKILLER

Im killer with combo's on round 3.. Never played online so i dont really know how good i am...
Have had some absolute wars with friends though..

I always use the fast hands with slickster style cos i box and counter...

things like jabbing away..Moving to the left throwing two or three jabs..
then a one two left hook to the head lean back make em miss hit em with a counter right and a left hook..
I love to put punches together on fight night.. It helps when you have the fast punch style though cos you can lunge in with hooks and follow as they retreat after a few punches...
Also its always great to mix up your punches and go to the body.. And maybe even go back to the body after going to the head.. Get plenty of combo's that way..
Peace

Thanks Tito for the tips hope to take some off that into battle lol if anyone else has more tips would be greatfull for the help...