Sure.
One of the basic combos is to start with Q in Human Form. H for human form and C for cougar form.
Q(H) -> R -> W(C) -> E(C) -> Q(C) -> AA. That's the most basic form of a Nid combo. Once you hit the Q, you will see a circle around you with a line to your opponent. Facing the cougar in that direction and pressing W will immediately pounce you onto your opponent. Do your E to lower your opponent's health even more and finish with a Q AA since Q procs the ability. Why Q last? Because of the following:
"The damage is increased by 1.5% for every 1% of the target's missing health, for a maximum of 150% bonus damage (250% total damage)."
Source: http://leagueoflegends.wikia.com/wiki/Nidalee
Once you get that down in customs, you should be able to maneuver around Nidalee properly. For instance, I set traps when I'm in the middle lane. Middle lane procs the same passive your Q(H) does. As a result you can pounce and repeat the combo.
What happens after the combo? Well, usually I W(C) back and R then shoot Q(H) if the opponent's health is low AND I have a clear shot (this is important or you will burn your mana endlessly) or Alt+E(H) to Heal and CS.
That's the basics of Nidalee. It took me quite a while and numerous losses to get the combo down, but I can maneuver Nidalee decently now.
You also should note that if your W(C) or E(C) get's a kill, whether it is minions or a champion, it's CD goes down to ~1 sec. So a general tip when CS with cougar form (which is very efficient since Cougar form does not use mana) is that I usually W(C) and E(C) low health minions and keep doing that repeatedly for very fast wave clears. On top of that, W(C) follows your cursor so it's quite easy to get it down if you have smartcasted skillshots before.
Overall, the above combo is the basic combo. You should know that W(C) then R would give your human form a jump pretty much so I do that to catch up an opponent and then Q(H) to secure a kill. A skilled Nidalee is so beautiful to watch. Also know which places you can pounce over the wall. You can find multiple guides online and on YouTube.com that display some ways you can juke your opponents.
Hope this helps! Ask me questions if you have any!