> I went to the my company to rode my bycicle in the morning. When I rode a bike, I could saw the blue sky without cloud. I felt cooling a Because weather was nice. It was a very beautiful day^^.

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Correction:     Student's sentence        Corrected sentence        Grammar explanation       Better sentence        

I went to the my company to rode my bycicle in the morning.
I went to the company by riding my bicycle in the morning.
You either eliminate the article "the" or the pronoun "my".
"Rode" is the past form of "ride".
By+verb+ing (by riding) to indicate how your action of going to the company is performed.
Observe the proper spelling of your word, B-I-C-Y-C-L-E.

When I rode a bike, I could saw the blue sky without cloud.
When I rode the bike, I could see the blue sky without any clouds.
Use the article "the" as you have already mentioned "bike" in your previous sentence.
Could + base form of verb - "Could" should be followed by "see", the base form of the verb "rode".
"Any" is used to refer to a number of things

I felt cooling Because weather was nice.
I felt cool because the weather was nice.
Don't capitalize the first letter of the word "because" unless it's place at the beginning of your sentence.

It was a very beautiful day^^.
This sentence is correct.