"ng" sound:
- Samoan only uses "g" - ie. Romney Fuga
- Tongan uses "ng" - Harvey Langi
You will never see "ng" anywhere in samoan language.
"H":
- Samoan Language doesn't have the letter "H"
- Tongans use "H" frequently - Haloti Ngata, Ului Lapuaho
"K":
- No "K" in Samoan language
- Tongans use Ks frequently - Sione Takitaki
Just in case you were wondering if there was an easy way