Tab spacing in richTextBox

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C#

programming

Tab

I'm making a word processor to learn some things. (This is in C# by the way)

Anyway I want the user to be able to press Tab in the richTextBox in order to create a space like in word...

I have tried the KeyDown event but it does not respond to Tab (it values tabbing to the next control before KeyDown event).

Anyway I don't really need it to create a grid so to speak like in word, I just would like to be able to trigger events from the tab KeyDown. (Maybe I'd like it to just add 5 blank spaces in the text to simulate the tab space).
Like this:

private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Tab)
    {
        MessageBox.Show("it worked!");
        richTextBox1.Text = richTextBox1.Text+ "     ";
    }
}

If anyone knows any way to achieve this or help me in any way I'd like that. Or if I explained it not clearly you can ask me to rephrase things. Thanks in advance!