Modals

Modals are a type of auxiliary verb (verbs other than the main verb) that are used to show the possibility, ability, permission or necessity of a given verb. They may also be used to show politeness in certain cases which we will see in the following section. 

(मोडल एक प्रकार की सहायक क्रिया (मुख्य क्रिया के अलावा अन्य क्रिया) होती हैं जिनका उपयोग किसी दी गई क्रिया की संभावना, क्षमता, अनुमति या आवश्यकता को दर्शाने के लिए किया जाता है। उनका उपयोग कुछ मामलों में विनम्रता दिखाने के लिए भी किया जा सकता है जिसे हम निम्नलिखित अनुभाग में देखेंगे।)

Modal	Usage	Example Sentences
Can	Ability, permission, possibility	She can swim.Can I eat this ?
Could	Past of “can,” polite requests, past possibility	She e could speak Spanish.Could you not make noiseIt Could have been better.
Will	Future tense, willingness	I will help you study for the exam.
Would	Past of “will,” polite requests, hypotheticals	Would you like some biscuitsHe would have made it work.
Shall	Suggestions, offers, asking for advice	Shall I bring you coffee ?
Should	Obligation, advice, probability	You should buy this phoneThis should be the right amount.
May	Permission, possibility	May I enter ?It may rain at night.
Might	Possibility with less certainty than “may”	There might be a storm in a few days.
Must	Necessity, strong obligation	You must submit on time.
Ought to	Similar to “should,” indicating obligation	They ought to come on time.