Replacement patterns for form fields
Not sure what a "drupal commerce" form is. There are two major kinds of forms in Drupal Commerce, including the add-to-cart form and the checkout form. Both forms include actions in the Rules module that would let you send an email should one of them get submitted.

Here's a rule that proves the point for add-to-cart (though I would not recommend spamming yourself this way):

{ "rules_spam_yourself" : {
"LABEL" : "Spam Yourself",
"PLUGIN" : "reaction rule",
"OWNER" : "rules",
"REQUIRES" : [ "rules", "commerce_cart" ],
"ON" : { "commerce_cart_product_add" : [] },
"DO" : [
  { "mail" : {
      "to" : [ "site:mail" ],
      "subject" : "Product added!",
      "message" : "\/\/ Product\r\nProduct Added: [commerce-product:title] ([commerce-product:sku])\r\nQuantity: [quantity:value]\r\n\r\n\/\/ Order\r\nOrder ID: [commerce-order:order-id]\r\nOrder Number: [commerce-order:order-number]\r\n\r\nOrder Status: [commerce-order:status-title]\t\r\nOrder State: [commerce-order:state-title]\r\n\r\nCreated: [commerce-order:created]\r\nUpdated: [commerce-order:changed]\r\n\r\n\/\/ Customer\r\nCustomer Email Address: [commerce-order:mail]\r\n\r\n\/\/ Actions\r\nCustomer View: [commerce-order:customer-url]\r\nAdministrative View: [commerce-order:admin-url]\r\n",
      "language" : [ "" ]
        }
      }
    ]
  }
}