Just a note, when there are tips like the quote below, though this is could be very helpful, the fancy grammar terms without any down to earth french examples right after would make a lot of new students just give up without realizing an example is in the article somewhere. Maybe consider adding examples right after it, at least to save time?

Thanks for the fantastic website! 

"Compound tense : en + [auxiliary] + [past participle] + [number]"