Kishi shart-sharoitdan, vaziyatdan va qonun-qoidadan kelib chiqib biror bir ish-harakatning bajarilishi shart deb hisoblasa “have to” modal fe’li qo’llanadi: He is very helpless. I have to help him – u juda nochor. Men unga yordam berishimga to’g’ri keladi The train leaves the station at 6 early in the morning. So I have to get up early to take it – poyezd ertalab soat 6 da stansiyadan jo’naydi. Men unda ketish uchun ertalab turishimga to’g’ri keladi Nick studies at University. So he has to wear a tie – Nik universitetda o’qiydi. Shuning uchun u galstuk taqib yurishiga to’g’ri keladi In Britain, children have to go to school at 5 – Britaniyada bolalar besh yoshda maktabga borishlari kerak