In this video, we introduce you to shifting stress related to changing the suffix – for example pho-TO-graphy vs photo-GRA-phic. I know it can be a lot to take in but if you watch the entire series, hopefully it will all come together.
I suggest that you also watch the first and second part of this 5-part series. Each video looks at one aspect of the schwa and how it influences our speech in different contexts.