If you want to give a suggestion or advice to someone, use the modal verb “Should”(यदि आप...

Modals of permission to Grant permission (अनुमति देने हेतु)If you want to...

If you want to ask permission to do something, start your question with modal verbs May, Can or Could.(यदि...

We use “Must” when we want to express that something/ an action is necessary.Or The modal verb “Must”...

जब हमें कोई कार्य करने की जरूरत या आवश्यकता...