Quand / lorsque
When
Time or frequency- Future tense + future tense OR future tense + present tense
Pendant que
While
Indicates simultaneity of actions - future tense + more future tense
Chaque fois que
Each time that
Indicates repetition - future tense + future tense
Si
If
Si + Present tense, then future tense OR
Future tense, then Si + present tense