Why Can't Protestants Take Communion in a Catholic Church

Black Cordelias ^

[PAR35]

That makes me question how different the two forms of a similar sacrament actually are.

Lutheran view:

"For the reason why, in addition to the expressions of Christ and St. Paul (the bread in the Supper is the body of Christ or the communion of the body of Christ), also the forms: under the bread, with the bread, in the bread [the body of Christ is present and offered], are employed, is that by means of them the papistical transubstantiation may be rejected and the sacramental union of the unchanged essence of the bread and of the body of Christ indicated;"

Sounds like the fathers of your faith wouldn't agree.

http://bookofconcord.org/sd-supper.php The Holy Supper Para. 35

Perhaps you ought to look for a better Lutheran priest.

The Calvinists would be even further from Rome.