I want to say "My cat is snoring!" I found the verb to snore is 「いびき」and Jisho.org says it's a "godan verb with ku ending". I haven't learned what that means, so I tried the -ku conjugations from Wikipedia, but nothing lead to "is snoring," at least according to Google Translate. The closest I got was 「うちの猫はいびきいた」, "my cat was snoring."
What am I missing?