YOU SAID:

I saw the sea with my own eyes so I could say I saw the see I saw the sea

INTO JAPANESE

自分の目で海を見たので海を見たと言える

BACK INTO ENGLISH

I can say that I saw the sea because I saw the sea with my own eyes

INTO JAPANESE

自分の目で海を見たので海を見たと言えます

BACK INTO ENGLISH

You can say that you saw the sea because you saw the sea with your own eyes

INTO JAPANESE

自分の目で海を見たから海を見たと言えます

BACK INTO ENGLISH

You can say that you saw the sea because you saw the sea with your own eyes