Does the Verb tense disagree in My dog jumped up and down when I open the door

Yes, it does.

Explanation:

Yes, the verb tense disagrees. In one half of the sentence (My dog jumped up and down) the tense is past tense, whereas in the second half of the sentence (when I open the door) is in present tense.

- "chilles is sad and angry because hector, the trojan leader, killed his best friend patroclus. he seems angry with himself because he didn't or protect patroclus against the trojans."

sorry but can you explain the question because i didn’t understand it