word order

I said "word order is not important" before.
But , today, I would like to say a key point to make a sentence with right word order.
It is very easy.

A subjective word should be put the beginning of a sentence and a verb at the end of a sentence.
That's all.

eg:
Watashi wa densha de ikimasu. : I, train,by,go : I go by train
densha : (electric) train
de : by
iku : go
(ika-nai, iki-masu,iku,iku-toki,ike-ba,ike, itta)

Kore wa pen desu. : This, pen , is : This is a pen.
kore : this
pen : pen
desu : is / are

Ano hana wa totemo utsukushii (desu). : That , flower, very, beautiful (is) : That flower is very beautiful.
ano : that
hana : flower
totemo : very
utsukushii : beautiful
(an adjective word have a function of be-verb)