In English, verbs can be categorized into two groups based on how they form the past simple tense: regular verbs and irregular verbs.

Regular verbs in English create the past simple and past participle forms by adding -ed to the base form. However, there might be some spelling changes when adding -ed to certain verbs. In English, the simple past of regular verbs has the same form for all persons.

For example:

A verb that does not follow the standard pattern for forming the past simple tense is called an irregular verb. In English, verbs such as 'walk,' 'enter,' and 'love' are regular because they follow a fixed pattern in the past tense. However, verbs such as 'eat,' 'put,' and 'have' are irregular because they do not follow the same pattern.

Here are some examples:

Just like present simple tense, the negative form and questions in past simple tense need an auxiliary verb: 'did.' It is the past simple form of 'do.' To make negative sentences in the past simple tense, 'did not' or its contracted form, 'didn't,' is used before the main verb in the base form.

However, if the main verb of the sentence is 'to be,' it does not need the auxiliary 'did' and can be negated by directly taking 'not.'

Just like the negation process, formation of questions in the past simple tense requires the auxiliary 'did.' Both yes/no and wh- questions in the past simple require addition of 'did.' To form a yes/no question in the past simple, simply use 'did' at the beginning of the sentence, followed by the subject and the base form of the main verb. Take a look at the examples:

In order to make wh-questions, an interrogative word such as what, when, where, who, how, or why is used at the beginning, followed by 'did,' and the subject. The main verb comes after, and it is always in its base form. Take a look at the following examples:

We use the past simple tense to talk about:

The past simple tense is used to describe an action that took place once in the past and is now finished. This tense refers to actions that started and ended in the past. In other words, it describes a completed action in the past. Here are some examples:

The past simple tense is usually used with adverbs of time like 'yesterday,' 'last week/month/year,' 'the other day,' 'when I was young' or '*a long time ago,' etc. They all refer to a point of time in the past. Look at these examples:

The past simple tense can also be used to talk about something that happened repeatedly in the past, often indicating that an action was done regularly and habitually. For example:

We use past simple to talk about something that was true for some time in the past. Take a look at some examples:

We can use the past simple to narrate stories or a series of events, by showing the sequence of events or actions in the past. For example:

The past simple tense can be used in the condition clause of second conditionals to refer to hypothetical situations in the present or future. This structure describes what would happen in the present or future if something else had happened in the past. Look at the examples:

The past simple tense can also be used after words like 'wish' to indicate a desire for something that is not currently true, or to express regret about something in the past. This usage conveys a hope for something that may be attainable in the future or a longing for something that is not currently possible. For example:

The past simple tense is used in conjunction with the past continuous tense to show that a completed action interrupted an action that was in progress in the past. This usage typically involves a subordinate clause with the conjunction 'while' or 'when' in the sentence. Look at the examples: