Answers

2014-11-18T21:57:46+05:30
Modals are related to grammar and they are used to determine nature of sentence.
like -can you please help me or we shall speak the truth
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2014-11-19T11:35:06+05:30
Modals are  special kinds of verbs that are used before ordinary verbs to express meanings  such as permissions, possibility, certainty, necessity etc...
examples
1. can you lift this box?
2. shall I open the door?
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