I'll be wallpapering you'll be wallpapering he'll be wallpapering we'll be wallpapering you'll be wallpapering they'll be wallpapering
Future perfect
I'll have wallpapered you'll have wallpapered he'll have wallpapered we'll have wallpapered you'll have wallpapered they'll have wallpapered
Future perfect continuous
I'll have been wallpapering you'll have been wallpapering he'll have been wallpapering we'll have been wallpapering you'll have been wallpapering they'll have been wallpapering
I'd be wallpapering you'd be wallpapering he'd be wallpapering we'd be wallpapering you'd be wallpapering they'd be wallpapering
Past
I'd have wallpapered you'd have wallpapered he'd have wallpapered we'd have wallpapered you'd have wallpapered they'd have wallpapered
Past continuous
I'd have been wallpapering you'd have been wallpapering he'd have been wallpapering we'd have been wallpapering you'd have been wallpapering they'd have been wallpapering