I'll be modulating you'll be modulating he'll be modulating we'll be modulating you'll be modulating they'll be modulating
Future perfect
I'll have modulated you'll have modulated he'll have modulated we'll have modulated you'll have modulated they'll have modulated
Future perfect continuous
I'll have been modulating you'll have been modulating he'll have been modulating we'll have been modulating you'll have been modulating they'll have been modulating
I'd be modulating you'd be modulating he'd be modulating we'd be modulating you'd be modulating they'd be modulating
Past
I'd have modulated you'd have modulated he'd have modulated we'd have modulated you'd have modulated they'd have modulated
Past continuous
I'd have been modulating you'd have been modulating he'd have been modulating we'd have been modulating you'd have been modulating they'd have been modulating