first conditional

Noun

 * 1)  A structure used to talk about possible events in the present or future, containing an "if" clause (with a verb in the present tense) and a main clause (with the future expressed by will + an infinitive verb).
 * "If it rains tomorrow, I will wear my coat" is a first conditional sentence.

Coordinate terms

 * zero conditional
 * second conditional
 * third conditional
 * mixed conditional