- Canceled vs. cancelled
- Fueled/fueling vs. fuelled/fuelling
- Gaveled vs. gavelled
- Labeled vs. labelled
- Modeling vs. modelling
- Rivaled/rivaling vs. rivalled/rivalling
- Shoveled/shoveling vs. shovelled/shovelling
- Shriveled/shriveling vs. shrivelled/shrivelling
- Traveled/traveling vs. travelled/travelling
- Tunneled, tunneling vs. tunnelled, tunnelling