We always know when someone's coming to the door because the dog barks.
The hounds spotted a rabbit in the distance and ran off barking excitedly.
At the vet's, everyone was sitting quietly when my dog suddenly began to bark.
How did the dog that barked climb the tree?
Ship was wet everywhere, while the dogs barked like fury.
Thus, it is now true that the dog barked (past tense), and now true that the cat is (present tense) alarmed.