tu dois ... means 'you must / you have to ...' or 'you owe ...' when speaking about money.
Tu as quel cours le matin means "What courses do you have in the morning?".
Tu as des cours mardi matin means 'do you have class on Tuesday morning?'
Translation: You have a very big cat in your pants
"What are you liking best to do?"
It means "Very well what are you doing?"
Tu dois prendre soin de toi : You must take care of yourself
"es-tu" means "are you" in French or Spanish, "'(je) dois" means "(I) must" in French but does not mean anything in Spanish. Altogether is means nothing that makes sense.
mais si tu dois partir, vas-t-en! - but if you (feel that you) must go, go!
tu dois ... means 'you must / you have to ...' or 'you owe ...' when speaking about money.
you must phone your girlfriend / buddy in French.
Tu dois pratiquer.. ou Tu as besoin de pratiquer..
Je comprends, merci de ta compréhension. N'hésite pas si tu as besoin d'aide ultérieurement. À bientôt!
je dois means i have
"tu dois te sentir jolie"
"wow tu dois rêver"
je dois ... means I have to ..., I must ....
you have to take your holidays = tu dois prendre tes vacances