This is an error I frequently commit, most of the time while typing I type comming instead of coming. There should not be double m. I made this mistake influenced by running, where there are double n.
Litre/liter and Litter sounds so similar. But today I typed litter, when I wanted to type liter. Then I realised that I made some mistake and rectified it. Litter means trash, while liter/litre is a metric unit of capacity.
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