Use of Simple Present
Simple Present is used for actions and situations in the present.
◾Facts and situations in the present 
Expresses a fact or given situation.
Examples: 
Our secretary works very hard.
 I do not agree with you. 
◾Actions in the present 
Actions that take place never, once, several times or regualary. (see also: signal words)
Beispiele: 
Mister Brown never attends a meeting. He always sends me.
◾Actions set by a timetable or schedule 
Actions in the future that we cannot influence, as their course is set by a timetable or schedule.
Examples: 
The train leaves at 6:24.
 The conference starts at 9:30. 
Signal Words of Simple Present
always, every …, never, normally, often, seldom, sometimes, usually If Clause Type I (If I talk, …)