Regex Help, find some words but not others

[freemason]

Hello folks, 

Does any one know how to write the regex for these 3 English statements to search for in the main string below. looking for the capitalized words.

1. ASC or ETC and ABS
2. ETC or ASC but no ABS
3. no ETC no ASC no ABS

E95 ASC ABS TABS GLX iGLX ETC

I have tried few thing trying to make it as logical operators but does not work, i am not sure of the syntaxes.

Thanks in advance

[billko]

If you read the detailed help for the Match Regular Expression Function, it contains a link to regular expressions to get you started.  Every time I have to do a regex I look there first.