if clauses - practical application
|if-clause type I||simple present||will-future, can, need etc.||the condition of the if-clause is fulfilled in the consecutive clause|
|example:||If you work hard,||you will be successful.|
|if-clause type II||the simple past||conditional I|
|implementation possible but improbable|
|example:||If I had money,||I would buy a BMW.|
|if-clause type III||past perfect||conditional II|
would have+ infinitive perfect
|condition can not be completed any more|
|example:||If I had had money,||I would have bought a BMW.|
if-clause type I
In the if-clause type I the conditon is fullfilled in the consecutive clausecompletely: zwingend eine Konsequenz im consecutive clause.
Wenn A, dann B. Im if-Satz steht simple present, im consecutive clause will-future oder ein modales Hilfsverb (can, need etc.) + Infinitiv.
example: If you eat less, you will lose weight.
if-clause type II
The condition of the if-clause is unlikely, but still possible.
The if-clause requires simple past the consecutive clause conditional I (would + infinitive).
example: If you worked hard, you would be more succesful.
if-clause type III
The condition of the if-clause can not be fulfilled any more. The if-clause requires past perfect , the consecutive clause conditional II (would have – present perfect infitive).
example: If you had worked harder, you would have been more successful.
The so-called zero conditional poses a condition in its if-clause in the simple present tense. The consecutive clause requires the imperative.
example: If you don’t like it, go!