Conditional I in English Grammar
We use the conditional Type 1 when we want to talk about situations we believe are real or possible in the future. 'If I study hard, I'll pass the exam.'
Conditionals consist of an if clause and a main clause. The if clause tells you the condition and the main clause tells you the result. You can change the order of the clauses without changing the meaning.
Conditional Type 1
First conditional talks about real situations and facts that are really likely to happen.
We are not sure yet, it is likely to happen.
Conditional Type 1: Structure
If the 'if clause' comes first (at the beginning of the sentence) don't forget to put a comma (,) after it.
The rule of placing comma is important.
If you begin your sentence with the main clause, you don't need to put a comma between the two clauses.
One does not need a comma before ''if''.
The same rule applies here.
We cannot use 'will' or 'won't' in the if clause. The main clause must have a future simple tense and the 'if clause' always has a present simple tense.
If clause cannot bear a future meaning.
You can use 'when', 'unless', 'as long as' or 'in case' instead of 'if'.
It is the same as ' if she tries her best at work, she will continue her job.'
Difference between 0 and 1 Conditionals
The main difference between 0 and 1 conditionals is that in type 1 conditional, the main clause must have a modal verb (like will, can, should ...)
This is zero type conditional, therefore there is no modals in the main clause.
This is type 1 conditional and we used the modal 'can' in the main clause, because we should have a modal in type 1 conditionals.
Conditional Type 1: Other Tenses
The 'if clause' can have all present tenses in the English grammar, like present simple, present continuous, present perfect and present perfect continuous.
And the main clause can have future simple tense, or have modal verbs like 'can, may, might, must, should, could'.
Modals can be used in result clauses.
'Will' is a modal verb that is used in the result clause, and the if clause is in present progressive tense.