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I'd been preinvestigating you'd been preinvestigating he'd been preinvestigating we'd been preinvestigating you'd been preinvestigating they'd been preinvestigating
I'll be preinvestigating you'll be preinvestigating he'll be preinvestigating we'll be preinvestigating you'll be preinvestigating they'll be preinvestigating
Future perfect
I'll have preinvestigated you'll have preinvestigated he'll have preinvestigated we'll have preinvestigated you'll have preinvestigated they'll have preinvestigated
Future perfect continuous
I'll have been preinvestigating you'll have been preinvestigating he'll have been preinvestigating we'll have been preinvestigating you'll have been preinvestigating they'll have been preinvestigating
I'd be preinvestigating you'd be preinvestigating he'd be preinvestigating we'd be preinvestigating you'd be preinvestigating they'd be preinvestigating
Past
I'd have preinvestigated you'd have preinvestigated he'd have preinvestigated we'd have preinvestigated you'd have preinvestigated they'd have preinvestigated
Past continuous
I'd have been preinvestigating you'd have been preinvestigating he'd have been preinvestigating we'd have been preinvestigating you'd have been preinvestigating they'd have been preinvestigating