The Sentence Diagram Generator will visually represent the grammatical structure of the sentence: "In this case, the app must be able to receive orders, process payments, and communicate with the restaurant electronically."

1. Main Clause: "the app must be able to"

   • Subject: "the app"
   • Modal Verb: "must"
   • Main Verb Phrase: "be able to"
     • Infinitive Phrase: "to receive orders, process payments, and communicate with the restaurant electronically"
       • Conjunction: "and"
       • Infinitive Verbs: "receive," "process," "communicate"
       • Direct Objects: "orders," "payments," "with the restaurant"
       • Prepositional Phrase: "with the restaurant"
         • Object of the Preposition: "the restaurant"
       • Adverb: "electronically"

2. Introductory Phrase: "In this case"

   • Prepositional Phrase: "In this case"
     • Object of the Preposition: "this case"

This structure highlights the relationships between the components of the sentence, illustrating how the app's capabilities are organized and connected.