First of all what is a text table?
Text table is a table which contains descriptions in several languages for each key in the main table. The key of a text table always contains the key of main table along with a language key field(SPRAS).
To check whether a table has a text table, display the table in data dictionary(SE11).
Use the menu path GOTO->Text Table.
If the table has a text table, then the text table will be displayed in the same session else a proper message will be displayed in the status bar.