Does the sentence right? It's better to ask: "Are these sentences right/correct?" 1.Money is easier to keep safe. Money is easier to keep safe (is easier than what?)...for example, Money is easier to keep safe in a bank rather than at home. 2.On the bank can not interest. This sentence isn't correct. It doesn't make sense and it's not a complete sentence. I'm not sure what you want to say. 3.Because you can pay online. This sentence isn't a complete sentence either. You need something before "because". Example, "It's better to have your money in a bank because you can pay your bills online." These sentences are not complete. You may want to provide more context in order get an idea of what you want/are trying to say.

Hello Derek, 1.Money is easier to keep safe. - Looks good! 2.On the bank can not interest. - Not sure what you mean here. Can you give more information, please? 3.Because you can pay online. - This is not a complete sentence (it is a dependent clause- meaning it cannot stand alone). When you start a sentence with 'because', simply, you need to finish the sentence. For example, you could write the following: "Because you can pay online, you don't need to go to the physical bank building." Hope this helps! Brandy