/ŋ/ is the sound that is at end of the “ing” syllable, like in the word, “walking.” Personally, I think /ŋ/ should become an official letter of the English alphabet, but so so far, I’m the only one who thinks that, so don’t you do it – even if you’re in my class.
/ŋ/ is made by pushing the back of the tongue up until the voicing stops. So in other words, you have to leave it there until the voicing stops. /ŋ/ is voiced, but the voicing must end before the tongue moves down. /ŋ/ is almost always at the end of a word. Let’s take a look: bring, thing, song, lung, among. And now this sound in some words in some sentences. The young boy sang his song. Ming played ping-pong for a long time. The gong will ring strong. Now here are some words to be careful of; words with /ŋ/ which is followed by a /g/ sound: finger, longer, stronger. Again, there’s only a few of these but you need to be aware of them.