Sentence

[jkl]

Is this a correct sentence and understandable? Would you please check it? THANKS.
Student cards value adding machine does not show/read the value of student cards but, it adds the money on the cards.

[Anglika]

The student card value-adding machine does not show/read the value of student cards but adds the money onto/to the cards.

[jkl]

Originally Posted by Anglika

The student card value-adding machine does not show/read the value of student cards but adds the money onto/to the cards.

I don’t know when to use “onto” and “into” in a sentence. I also know very little about punctuations. After “but” I always put a comma but I notice sometimes it applies sometimes not. For example in this sentence (the one I posted earliter) there is no need to put a comma after "but". Do you really mind helping me regarding these problems? I would appreciate it very much. Thanks.

[Anglika]

Originally Posted by jkl

I don’t know when to use “onto” and “into” in a sentence. I also know very little about punctuations. After “but” I always put a comma but I notice sometimes it applies sometimes not. For example in this sentence (the one I posted earliter) there is no need to put a comma after "but". Do you really mind helping me regarding these problems? I would appreciate it very much. Thanks.

In the case of the student card, the system is adding a sum of money onto an existing sum - in three dimensions it would be putting it on top of a pile of money = onto.

On the other hand, if you put money into your account in the bank, in three dimensions you are putting it into a box.


Never put a comma AFTER "but". A comma can go before it. In the case of your sentence, it could be included if the sentence read:

The student card value-adding machine does not show the value of student cards, but it adds the money onto the cards.

Here you have a statement and a complementary statement expanding on it.