Typing Expressions (Sync text to speech)

Since I last posted sync voice-over to text , I have been doing a little dgging with the TYPEMONKEY. I found what I wanted but I am not good with expressions. 

From the picture above, in the expression;

t = time - (m.key(1).time - pre); 

"m.key(1)" applies to the first marker "Parrotfish" on the layer "TM Master Control".

"m.key(2)" will apply to the second marker "are" on the layer "TM Master Control" and so on.

Which expression do I use to apply to all the markers in layer TM Master Control and not to the first marker only?

Thanks.