Did Peppa Pig say 'it's only mud' or 'it's only muds'? My four-year-old son loves Peppa Pig recently and I find it is a great material for English learning. So I am trying to listen carefully sentence by sentence and write the transcripts out. I started today from the episode 1, Muddy Puddles. I heard Peppa Pig said 'It's only muds' many times and I think it should be 'mud' according to the grammar knowledge I learned, but my ears told me it sounds like 'muds'. https://youtu.be/WdvGYRaRHUs?t=2m35s https://youtu.be/WdvGYRaRHUs?t=4m29s I also found a transcript here: http://glamour-and-discourse.blogspot.com/p/peppa-pig-episode-transcripts.html#1 and it is 'it's only mud'. Which one is exactly Peppa Pig said? If 'mud' is the correct one, why it sounds like 'muds'?