Past Tense Negative form

 PAST TENSE NEGATIVE 

Past tense negative is the meaning of "no"in sentences. this should contain not to get meaning negatively.

 1. simple past negative

structure : subject+ did + not + verb 1 + other words

Normally simple past contains the verb 2 form but here negative tense form of simple past come with verb 1 because 

did + verb 1 = verb 2

when did word come out from the verb 2 then we must write verb 1 only

for example, 

she did not give  money yesterday

he did not take leave two days ago

2. Past continuous tense

structure : subject + was / were + not + v1 + ing + other words

Normally past continuous tense contains verb 1+ ing here the negative past continuous comes with the not + v1+ ing.

for example, 

I was not going to market yesterday at 10 Am

He was not doing homework yesterday morning 

3. Past perfect tense

structure : subject + had + not + verb 3+ other words

Normally Past perfect tense Had + verb 3 but in the negative form contains not after the had helping verb.

for example, 

I had not written homework before he returned 

When we reached station, the train had left 

4. Past perfect continuous tense:

structure : subject + had + not + been + verb 1 + ing + other words

In this tense we use not for getting negative meaning in the sentence. 

for example,

I had not been playing cricket 

He hadn't been working all day so he tired

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