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I'd been legitimatising you'd been legitimatising he'd been legitimatising we'd been legitimatising you'd been legitimatising they'd been legitimatising
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Future perfect
I'll have legitimatised you'll have legitimatised he'll have legitimatised we'll have legitimatised you'll have legitimatised they'll have legitimatised
Future perfect continuous
I'll have been legitimatising you'll have been legitimatising he'll have been legitimatising we'll have been legitimatising you'll have been legitimatising they'll have been legitimatising
I'd be legitimatising you'd be legitimatising he'd be legitimatising we'd be legitimatising you'd be legitimatising they'd be legitimatising
Past
I'd have legitimatised you'd have legitimatised he'd have legitimatised we'd have legitimatised you'd have legitimatised they'd have legitimatised
Past continuous
I'd have been legitimatising you'd have been legitimatising he'd have been legitimatising we'd have been legitimatising you'd have been legitimatising they'd have been legitimatising