Have to Has to

برای بیان اجبار در انجام کاری (وظایف و مسئولیت هایی که باید انجام شوند) از has to/have to استفاده می کنیم. فعل پس از have to و has to به صورت مصدر استفاده می شود. ساختار جملات از گرامر حال ساده پیروی میکند.

تلفظ 'v' در have to، 'F' می باشد. /ˈhæf·tu/

have to/has to + infinitive

In my job I have to work from 7 am to 3 pm.
در کارم مجبورم(باید) از ساعت 7 تا 3 کار کنم.

She has to get 12 or she will fail.
باید 12 بگیره و الا (درسشو) میفته.

You have to learn new vocabulary.
You have to practice speaking, practice listening and you have to dedicate time to learning the language.

درجملات بالا speaking, listening و learning فعل نیستند و اسم فعل محسوب می شود.
افعال ing دار = اسم فعل
Verb + ing = gerund

Negative Form
برای بیان عدم اجبار به چیزی همین ساختار را منفی می کنیم.

You don't have to work today anymore.
دیگه امروز نیازی نیست کار کنی.

They don't have to wear uniform.
مجبور نیستن یونیفرم بپوشن.

Question Form
همین جملات را با استفاده از افعال کمکی do و does میتوان سوالی کرد:

Do you have to speak English?
Do you have to work from 3 to 7?
Does she have to go to school every day?

What do we have to do?
What language does she have to learn?
How often do you have to travel?

You have to clean up the kitchen.
You have to sweep and mop the floor.
She has to throw all the magazines out.