How do you say it's been a long while in French?
"it's been a long while" == is an equivalent of "i'm sorry i didn't write you for so long!"
which is a combination of "i'm sorry" and "please let me know you do want me to write to you"
Machine translation
Ça fait longtemps
Translated automatically — no one has checked this one yet. Machine translation handles plain sentences well and misses tone, formality and idiom, which is exactly what the phrase pages on this site exist to capture.