Types of Conditional Sentence

Types of Conditional Sentence

      Types of Conditional Sentence. Have a nice meeting to my beloved readers. Here I want to share grammar edition. It is about conditional sentence. Conditional sentence is also known as Conditional Clause or If Clause plays an important role in grammar. It describes a condition and the result that follows. Conditional sentence is made up of two parts: the if-clause (condition) and the main clause (result that follows).

There are three types of Conditional Sentence.

  1. Conditional Sentences Type I
  2. Conditional Sentences Type II
  3. Conditional Sentences Type III

Usage and Pattern

Conditional Sentences Type I

Usage

       Conditional Sentences Type I refer to the future. An action in the future will only happen if a certain condition is fulfilled by that time. We don’t know for sure whether the condition actually will be fulfilled or not, but the conditions seems rather realistic – so we think it is likely to happen.

       The basic form for this type of conditional sentence can be seen in the chart below. This type refers to future possibilities that are certain or probable.

Pattern

Main ClauseIf Clause
Future tenseIf + Present tense

Example:

I will send her an invitation if I find her address.

We will leave without them if they don’t arrive soon.

If ClauseMain Clause
If + Present tenseFuture tense

Example:

If I find her address, I will send her an invitation.

If they don’t arrive soon, we will leave without them.

Conditional Sentences Type II

Usage

       Conditional Sentences Type II refer to situations in the present. An action could happen if the present situation were different. we don’t really expect the situation to change, however. We just imagine, what would happen if the situation fulfilled.

     This type is often called the hypothetical or ‘unreal’ future conditional since it is usually used to speculate about either very unlikely future situations or present and future impossibilities.

Pattern

Main ClauseIf Clause
would + verbIf + Past tense

Example:

I would send her an invitation if I found her address.

We would leave without them if they didn’t arrive soon.

If ClauseMain Clause
If + Past tensewould + verb

Example:

If I found her address, I would send her an invitation.

If they didn’t arrive soon, we would leave without them.

Conditional Sentences Type III

Usage

       Conditional Sentences Type III refer to situations in the past. An action could have happened in the past if a certain condition had been fulfilled. Things were different then, however. We just imagine, what would have happened if the situation had been fulfilled.

       This type refers to hypothetical situations in the past. In this case we use the Past Perfect tenses in the if clause and would + have in the main clause.

Pattern

Main ClauseIf Clause
would have + past participleIf + Past Perfect tense

Example:

I would have sent her an invitation if I had found her address.

We would have left without them if they hadn’t arrived soon.

If ClauseMain Clause
If + Past Perfect tensewould have + past participle

Example:

If I had found her address, I would have sent her an invitation.

If they hadn’t arrive soon, we would have left without them.

Notes

  1. When the ifclause is at the beginning of the sentence, we must add use a comma after if clause.
  2. When the main clause is at the beginning of the sentence. In this case, don’t use a comma.
  3. The order of the clauses can be changed with no change in meaning.

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