He is starting to show complete command of the art form.
If so, does this person have complete command of the English language?
Last night, he had seemed in such complete command.
The room remained dark, and then he remembered the complete command.
She had enormous strength of will and complete command over herself.
You'll be in total and complete command, even over the line officers who have agreed to help us with this.
"Today I just ran a controlled race and was in complete command."
In three months the boy had a complete command of language again.
She assumes complete command over him, who then tries to get her back home.
Within a month, the invasion forces held complete command of the river and the country.