Content restricted only for members

Hi. Sorry about my english, i am from Brazil.

I have a situation here.

In my posts i need to write something in the top, and above the text i need to restrict only for members. And it’s from the plugin Google Forms. And my associates don’t understand PHP, so i have to create a shortcode, but i can’t put two shortcodes in the post because don’t work.

Example:

Text Text Text

[members-only-verification]
[wpgform id=’123′]
[/members-only-verification]

The code from members only it’s just a “if is_user_logged_in()”… And i can’t put PHP in the post because i am the only one who understand PHP.

If anybody knows a plugin who do that please tell me.