First+Conditional

__USES__

 * The First Conditional is used for real or possible situations. These situations, the Main clause, will take place if a condition, the If clause, is met.
 * Example: __If it rains__, __I will use__ the umbrella. __If I am__ thirsty, __I will drink__ a glass of water.
 * (!) We can use "unless" in this kind of conditional. It means "if... not"
 * Example: __Unless we cook__, __we cannot eat__ = __If we do not cook__, __we cannot eat__.

__FORM__

 * If clause [present simple] +,+ Main Clause [future simple "will"]
 * If clause [present simple] +,+ Main Clause [modal verb: can, may, should, must...]
 * Using modals we express the probability: __If it is__ sunny, __we can go__ to the beach.
 * We can also use inversion in First Conditional without using a comma between the clauses
 * If we go to France, we will go to Eurodisney / We will go to Eurodisney if we go to France