Conditional phrases and clauses (Basic)


Conditional - Type 1

Conditionals of this type tell us that something will happen if a certain condition is fulfilled. The condition may or may not be fulfilled. 
 If-clause Simple Present -- Main clause Will shall can may +plain infinitive 
Eg.: If you study hard, you will get a first class.


Conditional - Type 2

Conditionals of this type are used when we talk about something which we don't expect to happen or which is purely imaginary. 
If-clause Simple Past (Subjunctive) -- Main clause would/shauld/could/might + plain infinitive 
Eg.: If you studied hard you would get a first class. 


Conditional - Type 3

Conditionals of this type say that something did not happen because a certain condition was not fulfilled.
If-clause Past perfect Main clause would/should/could/might + perfect infinitive 
Eg.: If you had studied hard, you would have got a first class.


What is Zero Conditional?

We use the zero conditional when we want to talk about facts or things that are generally true. Scientific facts are often covered by the zero conditional.

We can make a zero conditional sentence with two present simple verbs (one in the 'if clause' and one in the 'main clause'):

  • If + present simple, .... present simple.
For example, 
  • If you heat ice, it melts.