Conditional
Subject: English
Overview
Sentences containing conditional clauses like if, unless, provided that are called conditional sentences. This note contain information about structures of conditional sentences.Conditional
Sentences containing conditional clauses like if, unless, provided that are called conditional sentences. They express four types of conditions and each type has different structures and meanings.
| Types | Meanings | Structures | Examples |
| Zero | always real and possible | simple present, simple present | If it rains, we need an umbrella. |
| First | possible situations in the present or future. | simple present, will/shall/can/may+v1 simple present, imperatives | If she meets me, I will help her. If you want to achieve success, work hard. |
| Second | unlikely but possible situation in the present or future | simple past, would/could/might+V1 | If i were a bird,I could fly high. |
| Third | unreal situations in the past | past perfect, would/could/might+ have+V3 | If they had invited me, I could have come. |
Various Structures of Conditional sentences
Positive Conditions:
- I will do it if you help me.If you like
- If you like it , you may buy it.
Negative conditions:
- If you don't work hard, you will fail the exam.
- If you don't water flowers, they die.
Interrogative conditions:
- What happens to your laptop if you left it in sleeping mode for whole day?
- What will you do if he rejects your idea?
Had+ subject+ past participle:
- Had he come in time, he would have caught the bus.
- Had I saved my money, I would have bought a dress.
Things to remember
- Sentences containing conditional clauses like if, unless, provided that are called conditional sentences.
- They express four types of conditions and each type has different structures and meanings.
- It includes every relationship which established among the people.
- There can be more than one community in a society. Community smaller than society.
- It is a network of social relationships which cannot see or touched.
- common interests and common objectives are not necessary for society.
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