ok i need help on how do my team mates quest plz

Hey man you need to be more specific because there are multiple missions regarding you allies.Do you mean finding carth's son, or Mission's brother.

Well because of how broad everything is that you asked, I'll give you some of the answers to your questions

Canderous- I found the dude for the last part of his on korriban, talk to him to hear all oh his stories, then you have to go to Tatooine. Go outside to the desert, near the sand crawler. When you see it, head to the right, and you'll see a dip in the ground. That is where you need to go to in order to complete his side-quests.

Carth- Talk to him a lot, and get him to talk to you about his son. Go to all the worlds because I'm not sure which one it is, and someone will run up and tell you his son is training to become a sith at korriban. Go there, and become an apprentice and find him, to save him you have to be light-sided, if your dark then you end up having to kill him.

Juhani- talk to her about everything that you can, then go to Mannan, when you get there there's a person who knows her. Say whatever you want, then go back to your ship, there's a fight, and you can either kill him, or save him.

Bastilla- Her mom is on Tatooine in the cantina. Go inside with bastilla in your party, and talk to her. Then you have to complete the whole tatooine world to complete this part. In the kryaat dragon's cave search all the bodies and you will find the data pad of her father. Either give it to bastilla's mom or keep it for yourself.

Jolee- on manaan go to the area with the court. Just to the left should be a woman who, when she see's Jolee, will run up and talk to you. His friend Sunry, a Republic War Hero, has been arrested for murder. Then you have to go over to where the Republic Embassy is, just to the left side of the hallway. Talk to everyone there, persuade/force persuade to get everyone to tell you what you need to know, then same again, to make them tell that to the judges. *Hint- Sunry actually did do it, just you have to prove it*

Mission- to find her brother go to one of the world's, again not sure which one it is. And Leena will run up and tell you her brother was working for Czerka Corp. On Tatooine. Go there and ask the representative about him, to find out that he was captured by the sand people. Go to their enclave, and he should be right across the hall from the captured Jawas. HK-47- I don't think he has a side-quest, or if he does, I haven't found it, same with Zalbaar, and the little droid.

for carth talk to him until he mentions his son and wife. Have him in your party then a man will talk to you and tell you dustil has joined the sith. Go to koriban and go to where the place you stay is and then search around that area i think he is by lashowe but iam not sure.

For mission talk to her until she says that her search for griff wont get in the way. Have her in your party and lena will aproach you. She will tell you griff is on tatoine working for czerka. Go to tatoine with mission and in the czerka offices ask the lady about griff.She will say that he was captured by sand people. Go to there enclave and in the very back open the door and griff should be there.

For Bastila talk to her until she mentions her parents. have bastila in you party and a lady will aproach you and tell her her mom is sick. She is in the cantina on tatoine. She will say that bastilas dad died and she will ask her to find his holacron. It is in the kyrayt dragons cave.

For jolee just have him in your party and a man will say sunry got arrested. He is on mannan. Just gather evidence from the hotel the republic and sith embasssys and you can convience the judges to let him go.