Sentences is not that far difficult but always remember that sentences has parts too and without this important requirements, then that could be considered as phrase rather than a sentence...Well the parts that I meant earlier is the subject and predicate respectively...Constructing a sentence is not that hard.I'll give you an example then to further widen your wisdom
Anna is dancing.
"Anna" is the subject while "is dancing" is your predicate...Understanding or creating sentences is simple.Always remember that a sentence is always composed by a punctuation mark at the end.It is either of these mark period(.),question mark(?) and exclamation point(!)...
Talking about "e" pronunciation is not that hard. Well,visiting an online encyclopedia that needs a internet connection of course help you these.
Hope this Helps=)