You can spell the plural of buffalo as either buffalos or buffaloes or even buffalo - all are not wrong
Three plurals exist, spelling in order of preferred first, BUFFALOES BUFFALO BUFFALOS
The word is spelled buffaloes.
The correctly spelled plural noun is buffaloes.The correct spelling of the other nouns: oxen, geese, knives.Note: the plural form of buffalo can also be spelled buffalo or buffalos.
Yes it is spelled correctly
You have spelled 'still' correctly.
Yes, engineer is spelled correctly in your question.
Flattest is spelled correctly. The others are spelled: silliest, biggest and sweetest.
Yes, surprisingly is spelled with an S. Surprisingly is how you spell it. You spelled it correctly.
You've spelled it correctly.
Convenience (easy access or availability) is correctly spelled.
It should be foreign.
yes, that is correct.
No, "infrachrondal" is not spelled correctly. The correct spelling is "infrachondral."