usage.obligation-tener-que
Tener que: personal obligation
Tener que + infinitive is the everyday 'have to': tengo que renovar el carnet. Past: tuve que (and did) vs tenía que (was supposed to).
usageA2✓ Reviewedv0.1.0
Explanation
The default obligation in speech, personal and concrete: tenés que firmar acá, tenemos que salir ya. Negated = don't have to (not mustn't): no tenés que venir si no querés.
Preterite tuve que implies it happened (tuve que esperar dos horas); imperfect tenía que leaves it open (tenía que llamar y me olvidé).
This is the default 'have to' of speech, personal and concrete. Watch two traps: negated, no tenés que venir means 'you don't have to' (not 'you mustn't'); and the past splits by aspect — preterite tuve que implies it actually happened (tuve que esperar dos horas), while imperfect tenía que leaves it open (tenía que llamar y me olvidé).
Examples
I have to be at the consulate at eight.
Region: global
We had to change plans.
Region: global
I had to wait two hours, but I signed in the end.
Region: global