So (ook): bevestigende zin -> iets geldt
ook voor jou.
-"She likes dogs. So do I." "I'm tired. So am I."
Not..either, nor, neither (ook niet): ontkennende zin -> iets geldt ook niet voor jou.
-"He doesn't believe in ghosts. Neither do I." "Their trip wasn't great. Neither was ours."
-"He doesn't believe in ghosts. I don't believe in them either."
-"He doesn't believe in ghosts. Nor do I." " They didn't like her new album. Nor did my sister."
Neither and nor: samen in 1 zin -> verbind 2 negatieve dingen.
-"Neither Sam, nor his mates went to the party."
-"Neither I, nor my parents found the play fun."