Yes, I understand, I am using technical language to be indifferent to gender (male / female) .. but does not seem to be the more correct. Actually you're right, you can use terms like: inserted at 5 minutes ago ... but after two weeks, you can use the condition to personalize: Inserted on: 01/02/2014, or posted on: 02/01/2014.
But it is also necessary to put another new parameter translation, before the parenthesis (before the variable printing).
Everything has a solution, thanks for the tip
Regards
EDIT: sorry, after parenthesis and before echo