If you own all three licenses, then yes, in theory, you can install all three. I've had 10 and 11 on the same machine without problems. I've had 11 and 12 on the same machine without problems. Not sure if your particular machine will like this, but mine is okay.

Do be careful if you edit in all three -- the old saved in 11 and cannot open in 10 thing.

Regards,

Kimberly