The Sentence Diagram Generator allows you to visually represent the grammatical structure of the provided sentences. For the sentence "Last week my friend and I ran the exhausting mile, and I couldn't catch my breath," you can create a diagram that illustrates the subject, verb, objects, and conjunctions.

1. Main Clause: "Last week my friend and I ran the exhausting mile"

   • Subject: "my friend and I"
   • Verb: "ran"
   • Object: "the exhausting mile"
   • Adverbial Phrase: "Last week"

2. Coordinating Conjunction: "and"

3. Second Clause: "I couldn't catch my breath"

   • Subject: "I"
   • Verb: "couldn't catch"
   • Object: "my breath"

This structure can be visually represented using the Sentence Diagram Generator, which will help clarify the relationships between the components of the sentence.