How to use SHOULD as an auxiliary in English?
In this lesson we would learn about the uses of ‘should’ as an auxiliary. 'Should' is used as follows: 1. This is used as the past equivalent of shall in sentences like complex sentences. Although, ‘shall’ is a future tense auxiliary, for issuing a command or order we use this ‘should’ in simple present tense or acknowledging it. 2. It is also used to express or exhibit duty or obligation on one’s part. 3. When we want to say, what is advisable in certain or particular situations or circumstances. 4. When expressing duty or obligation on one’s part. 5. It is also used in the ‘future in the past’ tense. 6. It is also used in simple present tense interrogatives to express surprise or annoyance. There are some rules regarding this auxiliary ‘should. They are: 1. In the simple present tense, the auxiliary ‘should’ is used in the verb of the present form. 2. In the present continuous tense, the auxiliary ‘should be’ is used in the verb of the present form. 3. In t