Is my sentence correct?

[ほりみやいちにさん]

私はくつをいいかいます
(I buy good shoes)

 

[mdchachi]

私はくつをいいかいます
(I buy good shoes)

No. what you said here is "I good buy shoes." Not grammatically correct.

 

[Majestic]

I think you have understood that you need to change the sentence structure, not just the words.
But you haven't quite got the right sentence structure

Japanese structure in one of its most basic forms = Subject + object + verb. In this case, "good shoes" is the object.

 

[nice gaijin]

And when you have a noun that's modified by an adjective, the adjective goes before of the noun

hot tea, 暑いお茶、あついおちゃ
tall mountain, 高い山、たかいやま
long hair, 長い髪、ながいかみ

 

[Majestic]

The above may be useful for @musicisgood as well.

 

[ほりみやいちにさん]

No. what you said here is "I good buy shoes." Not grammatically correct.

Ah thanks