je dois ... means I have to ..., I must ....
You would say "Je dois étudier" in French to mean "I must study."
Eh bien, je dois y aller
Je dois faire mes devoirs. (I have to/need to do my homework)
You can say 'Je dois faire mes devoirs' in French.
Il faut que je vérifie.
I must - je dois
je dois means i have
You would say "Je dois étudier" in French to mean "I must study."
i have is: je dois
je dois y aller, je dois m'en aller
"je dois" I have to leave = je dois m'en aller I have to work harder = je dois travailler plus dur
il faut que je .... or je dois ..
Que dois-je faire? in French means "What must I do?" in English.
Je dois partir in French means "I must go" or "I have to leave" in English.
"Je dois m'en aller maintenant / je dois y aller" means 'I have to go now' in French.
je dois mon thé is the phrase. This means that I have my tea.
"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.