I've been underemphasising you've been underemphasising he's been underemphasising we've been underemphasising you've been underemphasising they've been underemphasising
I'd been underemphasising you'd been underemphasising he'd been underemphasising we'd been underemphasising you'd been underemphasising they'd been underemphasising
I'll be underemphasising you'll be underemphasising he'll be underemphasising we'll be underemphasising you'll be underemphasising they'll be underemphasising
Future perfect
I'll have underemphasised you'll have underemphasised he'll have underemphasised we'll have underemphasised you'll have underemphasised they'll have underemphasised
Future perfect continuous
I'll have been underemphasising you'll have been underemphasising he'll have been underemphasising we'll have been underemphasising you'll have been underemphasising they'll have been underemphasising
I'd be underemphasising you'd be underemphasising he'd be underemphasising we'd be underemphasising you'd be underemphasising they'd be underemphasising
Past
I'd have underemphasised you'd have underemphasised he'd have underemphasised we'd have underemphasised you'd have underemphasised they'd have underemphasised
Past continuous
I'd have been underemphasising you'd have been underemphasising he'd have been underemphasising we'd have been underemphasising you'd have been underemphasising they'd have been underemphasising