This document provides examples and explanations of the uses of common auxiliary verbs in English grammar: to have, to do, and modal verbs. To have is used to form perfect tenses and can also be used as a main verb. To do is an "auxiliary verb bank" that is used to form interrogative and negative sentences when another auxiliary is not present, and it can also be a main verb. Modal verbs like will, would, can, etc. are always used with another verb to modify its meaning but cannot stand alone as main verbs. The document encourages continuing to further grammar lessons.

1. Basic Grammar Practice
2nd Class

2. To Have: have, has, had, will have, shall
have, having
• Use-1: Any Perfect tense without ‘to have’ is impossible. That means, the first duty of ‘ to have’ is to
make any perfect tense.
•
• Sakib has defeated West Indies in July, 2009 in a test match series.
• Ashraful had captained Bangladesh Cricket Team before Mashrafi came.
• Mashrafi will have done his duty by 2010.
• Use-2: At times ‘to have’ is used as main verbs.
• Sakib AL Hasan has a good friend.
• Ashraful had a nice Car.
• Mashrafi will have a good coach in 2013.

3. To Do: do, did, does, done, doing, will do, shall do
• Use-1: ‘to do’ is a ‘bank’ of auxiliary verb. That means, a sentence which has no auxiliary
verb, rewuires ‘to do’ to full fill its requirement when necessary. Such as – to make
Interrogative sense and negative sense.
• Interrogative Sense:
• Sakib defeated West Indies in July, 2009 in a test match series
• Ans: Did Sakib defeat West Indies in July, 2009 In a test match series.
• Ashraful plays well in difficult matches.
• Ans: Does ashraful play well in difficult matches.
• Rakib and Sakib play well In difficult matches. (make it negative)
• Ans: Rakib and Sakib do not play well in difficult matches.
• Use-2: At times ‘to do’ is used as main verbs.
• Sakib Al Hasan does a good job for his team.
• Asharful did well in 2007.
• Masrafi will do well in 2015.

4. Others (Modals):
Will, would, shall, should, can, could, may, might,
must, going to, have to, ought to etc.
• Use-1: ‘others’ can only assist a verb to make different senses and after ‘others’ the
main verb remains original (base form). And ‘others’ can never be used alone or as main
verbs like ‘to be’, ‘to have’, ‘to do’.
• He will do the work.
• He would do the work.
• He can do the work.
• He could do the work.
• He has to do the work.
• He should do the work.
• He is going to do the work.
• He ought to do the work.

5. ThankYou
• Keep Learning 3rd Class