Be sincere . you will win laurels use if clause condition
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Conditional sentences consist of a main clause and a conditional clause (sometimes called an if-clause). The conditional clause usually begins with if or unless. The conditional clause can come before or after the main clause.
There are three main types of conditional sentence.
Type 1
The main clause uses will, can, may, or might + the base form of a main verb. The if-clause uses the present simple tense.
Type 1 sentences refer to the future. They suggest that the action in the main clause is quite likely to happen.
The use of the modal verb may or might in the main clause suggests that there is some doubt whether the main verb action will be achieved.
Type 2
The main clause uses would, could, or might + the base form of a main verb.
The if-clause uses the past simple tense
or the past subjunctive.
Type 2 sentences refer to an imaginary situation. They imply that the action in the if-clause will probably not happen.
The past subjunctive is often used when giving advice to someone, especially about what the person should do.
Type 3
The main clause uses would, could, or might + have + the past participle of a main verb. The if-clause uses the past perfect tense.
In Type 3 sentences the speaker is looking back from the present to a past time and event. The speaker is talking about what might have happened but did not, either because the wrong thing was done or because nothing was done. This type of sentence is used when making excuses, showing regret, blaming, or giving an explanation.
Conditional clauses can also be used to talk about consequences, or to give an opinion about a situation in the following ways:
The if-clause uses the present simple tense and the main clause uses the present simple tense. This is used to refer to universal truths.
The if-clause uses the present simple tense and the main clause is in the imperative. This is used to give advice or orders for particular situations or sets of circumstances.
The if-clause uses the present continuous or present simple tense and the main clause uses a modal verb. This is used to make suggestions and give advice.
The if-clause uses will/would and the main clause uses a modal verb. This is used to make a request or to give a polite order.
Note that a ’d in the main clause is the contracted form of would. However, a ’d in an if-clause is the contracted form of had.
In the main clause the contracted forms of the modals used in speech and informal writing are: