Speaking of...

Hi, this time i I will mention speak some things about a partner of in my English class. This person is very funny, and incredibly spontaneous, and creative. I think my partner´s completely competitive in the sports and (he or she) loves to win. But in the school he or she is very fortgetful.

speaking of...

Hi, today I want to speak some things about a partner of my English class. This person is very funny and incredibly spontaneous and creative. I think my partner´s completely competitive in the sports and (he/she) loves to win. But in the school is very fortgetful.

Hello Orlando! I like your partner's descrption. It's hard to know who is. Give us a clue! 

speaking of...

Hi, this time I will speak about my partner in English class, this person is very funny and incredibly spontaneous and creative. I think my partner is completely competitive in sports and they love to win. But in school they are very fortgetful.

I think my partner´s completely competitive in the sports and (he/she) - use They as in they are.

's Is to own something, like Mike's book, Mike's locker.

partners is the same as partner is