Present Simple(adj) Affirmative(darak gap) Subject+Verb(s,es)+O+P+T

e.g You could/might have told me you were going to be late.
Obligation
1.Must
2.Have to/has to,had to
3.Need/need to
4.To be to+Verb
Must
Subject+must+Verb+O+P+T
Must,Present va Future zamonlari uchun ishlatilib qilinishi kerak,shart deb tarjima qilinadi.
e.g I must go right now
e.g I must leave tomorrow
Subject+must+not+Verb+O+P+T
Must not,qat’iy taqiqni bildiradi va qilmaslik shart deb tarjima qilinadi.
e.g You must not drive so fast
e.g I mustn’t leave my keys,otherwise I can’t get into
Attention:Must ning so’roq va o’tgan zamon shakli yo’q!
Have to/has to
Have to/has to Present va Future zamonlari uchun ishlatilib qilinishi kerak,shart,lozim deb tarjima qilinadi.
Subject+have/has to+Verb+O+P+T
e.g Tom has to do his job
e.g I have to learn English to get better job
Do/Does+Subject+have to+Verb+O+P+T?
e.g What do I have to do to get a driving licence?
e.g Does he have to finish this today?
Subject+do/does+not+have to+V+O+P+T
Don’t have to/doesn’t have to qilishing shart emas,bunga ehtiyoj yo’q degan ma’noni anglatadi.
e.g His father is rich,he doesn’t have to study or work.
e.g You don’t have to clean the car because I have already washed it
Attention:will have to-possible but less usual
I have to go tomorrow
I will have to go tomorrow
Attention:Must bilan have to ning darak gapdagi farqi Must bir kishini fikrini ifodalaydi ya’ni harakatni bajaruvchi shaxsning o’zi ish-xarakatni qilinishi kerak deb hisoblaydi,Have/has to da ish harakatni tashqi ta’sir natijasida qilishga to’g’ri keladi.
e.g I must write to Ann.I have not written to her for ages.
e.g Ann’s eyes are not very good.She has to wear glasses for reading.
Had to