YOU SAID:
i need to watch my lecture videos
INTO JAPANESE
私は私の講義ビデオを見る必要があります
BACK INTO ENGLISH
I need to watch my lecture video
INTO JAPANESE
講義ビデオを見る必要がある
BACK INTO ENGLISH
I need to watch a lecture video.
INTO JAPANESE
私は講義ビデオを見る必要があります。
BACK INTO ENGLISH
I need to watch a lecture video.
Come on, you can do better than that.