E04
core
Speaker stance
Modality
Obligation Aura
Must it happen? Is it required?
basic
Modal verb
Deontic modality
Obligation
معنا
A modal layer expressing necessity, duty, rule, requirement, pressure, or unavoidable need.
چطور آن را تشخیص دهید
Ask whether someone has to do something.
نمونهها
واژهها
must|have to|need to|required
عبارتها
must leave|have to work|need to study
جمله
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
نمای زبان
در زبان مادری شما
فارسی
میزان حضور
strong
اهمیت
Obligation uses باید and related necessity expressions.
باید زود برویم.
must early go-we.
در زبانی که یاد میگیرید
انگلیسی
میزان حضور
strong
دشواری
English obligation uses must, have to, need to, should, and be supposed to, with important nuance differences.
You must wear a seatbelt.
must = obligation
چالش رایج زبانآموزان
Learners often confuse must, have to, should, and need to.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.