Why are these sentences incorrect ?

[diplomacy]

Why are these sentences incorrect ?

1/in next month, he is going to be coming Here to visit his parents.

2/ my friend is going to travel on 10 am tomorrow.

3/ the singer has ended his concert by last song in his new album.

4/ my colleges don't speak English nor was I.

 

[emsr2d2]

Why are these sentences incorrect ?

1/ In next month, he is going to be coming here to visit his parents.

2/ My friend is going to travel on 10am tomorrow.

3/ The singer has ended his concert by last song in his new album.

4/ My colleges don't speak English nor was I.

I have made some amendments in red to your original post, showing some errors in capitalisation.

We don't do your work for you.

Here is a clue to #2 - look at the preposition.

And with #4, the whole sentence doesn't make sense - there are at least three errors (one spelling, one missing word, one incorrect word).

 

[SoothingDave]

Every English sentence begins with a capital letter. That's one thing.