Forgetting the 'que'
Mistake: “Tengo estudiar”
Correction: Tengo QUE estudiar
TEHN-goh keh ehs-too-DYAR
This is the most direct and common way to express obligation. It uses the 'have to' formula that works for almost any situation.

Tengo que estudiar: The classic scene of hitting the books.
I have to study — in Spanish
meh TOH-kah ehs-too-DYAR
Literally 'it touches me to study,' but it functions like 'it's my turn' or 'it's my lot' to study.
DEH-boh ehs-too-DYAR
This expresses a stronger sense of moral duty or 'must.'
TEHN-goh keh een-KAR lohs KOH-dohs
An idiom that literally means 'to drive the elbows in' (referring to leaning on a desk).
TEHN-goh keh keh-MAR-meh lahs pehs-TAH-nyahs
Literally means 'to burn my eyelashes.'
meh AH-seh FAHL-tah ehs-too-DYAR
Means 'I need to study' or 'I am lacking study.'
eye keh ehs-too-DYAR
General obligation. It means 'one must study.'
Different ways to say you have to study based on the 'vibe' of the obligation.
| Phrase | Formality | Best For | Avoid When |
|---|---|---|---|
| Tengo que estudiar | Neutral | Everyday use, very clear. | Never; it's always safe. |
| Me toca estudiar | Informal | Complaining to friends or shared schedules. | Formal academic petitions. |
| Debo estudiar | Formal | Writing a letter or serious self-discipline. | At a party with friends (sounds too stiff). |
The words are phonetic and straightforward for English speakers.
Just remember to include 'que' after 'tengo'.
Straightforward concept with fun regional idioms.
No puedo ir al cine, tengo que estudiar para el examen de mañana.
I can't go to the movies; I have to study for tomorrow's exam.
Me toca estudiar todo el fin de semana porque tengo finales.
I have to study all weekend because I have finals.
Si quiero aprobar, debo estudiar mucho más.
If I want to pass, I must study much more.
In many Spanish-speaking countries, studying is often a social activity. Students frequently meet at 'bibliotecas' or cafes not just to work in silence, but to discuss materials and quiz each other over coffee.
The phrase used in Spain perfectly captures the physical image of a student hunched over a desk, elbows firmly planted—a universal symbol of intense focus known to every Spanish student.
Mistake: “Tengo estudiar”
Correction: Tengo QUE estudiar
Mistake: “Tengo a estudiar”
Correction: Tengo que estudiar
Memorize the pattern: [Tener conjugated] + que + [verb in the 'ar/er/ir' form]. It works for everything: 'Tengo que comer', 'Tengo que trabajar', etc.
If you are turning down an invitation because you have to study, start with 'Lo siento' (I'm sorry) or 'Me encantaría, pero...' (I'd love to, but...) to sound more polite.
'Empollar' (to hatch/brood) is another common slang term in Spain for cramming for an exam.
Mexicans often use 'darle a' (give it to) for many activities including studying.
¡Buena suerte!
Good luck!
Gracias, la necesitaré.
Thanks, I'll need it.
¿Qué materia estudias?
What subject are you studying?
Estudio matemáticas.
I'm studying math.
Imagine you are in a 'Tangle' (Tengo) of books and you 'que' (CAN'T) get out because you have to study.
Natural follow-up to explain WHY you are studying.
Common state of being after studying hard.
Question 1 of 2
Which sentence is grammatically correct?
Knowing a phrase is one thing — using it at the right moment is another. Read 200+ illustrated and narrated Spanish stories to see phrases in the contexts where they actually belong.
No, it's actually more natural to leave it out. The word 'tengo' already tells the listener you are talking about yourself.
'Tengo que' is like 'I have to' (external obligation/routine), while 'debo' is like 'I should/must' (internal duty).
Simply add 'mucho' at the end: 'Tengo que estudiar mucho.'
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