Можете помочь?
Можете ответить на вопросы с примерами?
1. Do you use if or when to say that you are sure that one action will follow another action?
2. Do you use if or when that it is possible that one action will follow another action?

1. i use when to say i'm sure that one action will follow another action

2. i use if to say i'm sure that it is possible that one action will follow another action