E04
core
Speaker stance
Modality
Obligation Aura
Must it happen? Is it required?
basic
Modal verb
Deontic modality
Obligation
ความหมาย
A modal layer expressing necessity, duty, rule, requirement, pressure, or unavoidable need.
วิธีสังเกต
Ask whether someone has to do something.
ตัวอย่าง
คำ
must|have to|need to|required
วลี
must leave|have to work|need to study
ประโยค
You have to finish this today.
Visual guide
Basic shape
Obligation layer:
[person] → [event]
↑
rule / duty / need
must / have to / need to
You have to finish this today.
Compare shape
Same force, many shapes: EN modal: must leave EN phrase: have to work Verb: need to study Impersonal: required Particle/suffix: WORK + OBLIG
มุมมองภาษา
ในภาษาแม่ของคุณ
อังกฤษ
ระดับการปรากฏ
strong
ความสำคัญ
English obligation uses must, have to, need to, should, and be supposed to, with important nuance differences.
You must wear a seatbelt.
must = obligation
ในภาษาที่กำลังเรียนของคุณ
สเปน
ระดับการปรากฏ
strong
ความยาก
Obligation is expressed with tener que, deber, and impersonal hay que.
Tengo que trabajar. Hay que estudiar.
I have to work. One must study.
ปัญหาที่ผู้เรียนมักพบ
Learners often confuse personal obligation with general obligation.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.