another se usa cuando para oraciones en singular y other en plural. ej; im learning other languages i learn another language

"Another" can be thought of as a combination of "an" (indefinite article) + "other". So if you would normally use the indefinite article with the noun, you use "another". Let's play another song (Let's play a song) I need another cup of tea. (I need a cup of tea) Is there some other way? (Is there some way?) There is another way. (There is a way) I have other things to do. (I have things to do) Do you have any other questions? (Do you have any questions?)

by sense :D

Use "another," when the thing to which you are referring is additional to something else. Example: "Please may I have another apple?" or "Could you think of another way to say that?" Use "other," when the thing to which you are referring is separate to something else. Example: "Why don't you go and play with the other children?" or "I don't want you to pick that one, pick one of the other ones."