1. /eɪ/ (as in "say", "day")
* Common mistake: Pronouncing it as a pure /e/ sound, like in "bed".
* Tip: Make sure your tongue starts low and moves upwards towards the front of your mouth, like a gliding motion.
2. /oʊ/ (as in "go", "no")
* Common mistake: Pronouncing it as a pure /o/ sound, like in "hot".
* Tip: Start with your mouth slightly open, then close it slightly as you pronounce the sound.
3. /aɪ/ (as in "my", "high")
* Common mistake: Pronouncing it as a pure /a/ sound, like in "father".
* Tip: Start with your tongue low in the back of your mouth and slide it upwards and forward as you make the sound.
4. /aʊ/ (as in "how", "cow")
* Common mistake: Pronouncing it as /a/ followed by /u/ (like "ah-oo").
* Tip: Start with your mouth open and slightly rounded, and then move your tongue downwards and backwards.
5. /ɔɪ/ (as in "boy", "toy")
* Common mistake: Pronouncing it as /ɔ/ followed by /i/ (like "aw-ee").
* Tip: Start with your mouth slightly open and rounded, and then move your tongue slightly forward and upwards.
6. /əʊ/ (as in "go", "know")
* Common mistake: Pronouncing it as a pure /o/ sound, like in "hot".
* Tip: This diphthong is similar to /oʊ/ but the first part is a schwa sound (/ə/). Imagine saying "uh-oh" but shortening the "uh" sound.
General Tips:
* Listen carefully: Pay attention to how native speakers pronounce these diphthongs.
* Practice: Repeat the sounds often to improve muscle memory.
* Use online resources: There are many websites and apps that can help you learn and practice English pronunciation.
* Record yourself: This can help you identify areas where you need to improve.
* Don't be afraid to ask for help: If you're struggling, don't hesitate to ask a teacher or tutor for help.