In Articles^x, Speak english^x, Commas^x

Liveinjapan wrote: Thanks, Fleder, Philip, and CB. I understand how to use a comma. Although all of your answers are very helpful to me, I'm a bit confused. The reason why an article can't be used is that in the same way we could say 'I can speak English', not 'a English', right? ...

Thanks, Fleder, Philip, and CB. I understand how to use a comma. Although all of your answers are very helpful to me, I'm a bit confused. The reason why an article can't be used is that in the same way we could say 'I can speak English', not 'a English', right? Thanks. LiJ