Hi Bobby and welcome to the Project Meditation Community,
Nothing wrong with your English, you speak better than some English people do
Involuntary movements during meditation are quite normal, whether it's the body moving and settling, a limb moving slightly or some muscle twitches etc. It's nothing to be concerned about and just your body doing it's natural thing as you're meditating, so just put your focus back on your meditation.
Hugs
Giles