Thread:Support/ago ("$1 ago") cannot work/reply (2)

As I have said, you cannot use the basic (nominative-case) seconds, minutes etc., you have to introduce separate (instrumental-case) variants for the ago message. Then, its $1 parameter should be filled using these new variants. E.g.:

and:
 * MediaWiki:Seconds/en =
 * MediaWiki:Seconds-ago/en =
 * MediaWiki:Seconds/cs =
 * MediaWiki:Seconds-ago/cs =
 * MediaWiki:Ago/en =
 * ⇒ “5 seconds ago”
 * MediaWiki:Ago/cs =
 * ⇒ “před 5 sekundami” (not “před 5 sekund”)

Cf. also Special:Translate/wikia-timeagomessaging (https://svn.wikia-code.com/wikia/trunk/extensions/wikia/TimeAgoMessaging/).