Can someone tell me how to earn coins?

Now there are various methods which you can use to make coins, but i will just explain you the ones you can do with ease. Now easiest way to do that would be the Lucky Dip , Its probably the easiest way to get some coins cash or random pokemons. In average you can expect to make atleast 200 coins from this sometimes if you are lucky you could endup making more. The other method which i would suggest the newbies is that, search for people who are willing to buy normal pokemons from maps. Before you use this method i would suggest you to search for someone who is willing to pay you decently and since map pokemons are so easy to find you should be happy if you get paid around 1 coin for 3-4 map pokemons, if you do find some buyers, run to the poke mart and buy some pokeballs and catch all the pokemon you can find on maps. Just in case you are lucky you could endup finding some shinies in process, they aren't worth much buy people pay around 50 - 100 coins depending on what shiny you have. My personal Favorite method is to train for coins, You could easily get paid around 500 coins for 1 bill exp which is a pretty decent rate if you have a pokemon over 4k. Once you have around 2k coins you could try to use the 50-50 gamebut DO NOT BET MORE THAN WHAT YOU CAN AFFORD FOR LOSING. Pro tip - "Even if you keep losing there is a point of time where you will win eventually, That bet could both makeup for the losses and get you into profit" I wont tell you out more than that, if I do other newbies would go bankrupt lol.
From xhinz's guide^^

Ok thanks for the advice! Im new so i appreciate it!!

What do you mean train for coins?

Like abc wants cba to train his pokemon to 2000 for coins.So cba trains and he gets coins

first u join a clan and train
there is a option called "clan rewards" in clan the more u train more u coins u can get in clan rewards

This message is hidden because this person has been banned.

If your lucky you can earn coins in lucky dip or bet big in the 50/50 game. Win the raffle or similiar comps.
Another way is doing the Laboratory tasks on Giovanni's side. (but that only gives u about 5 coins average)
or just borrow coins from a friend. Or sell pokemon in the auction house.