The phrase "and failed to master" is correct and usable in written English.
It can be used to indicate that someone did not succeed in achieving proficiency or control over a particular skill or subject.
Example: "Despite his efforts in studying, he struggled with the material and failed to master the concepts required for the exam."
Alternatives: "and did not succeed in mastering" or "and was unable to master".
In Game 2, the Knicks' magic tricks confused and flustered the Indiana Pacers, who turned the ball over 21 times and failed to master the swarming defense.
In upstate New York, where she first lived, she was dropped into the eighth grade, where she learned little English and failed to master the A B C's. Now at Liberty High in Manhattan, she is finally coming to terms with English and the alphabet, addition and multiplication, continents and countries.
Many students, for example, show up at college (or junior college) unprepared to learn, unable to manage time and having failed to master basics like math and English.
This isn't the first time that Skrynka has tried – and sometimes failed – to master a new skill for a performance.
And having failed to master the art of opening those hard plastic clamshell-type packages (knives are too dangerous and scissors hard to manipulate), I plan to ask stores to do that for me as well.
The following are some of the pitfalls that have befallen carriers and enterprises that have failed to master SDN and have instead become mastered by SDN.
The following are some of the pitfalls that have befallen carriers and enterprises that have failed to master SDN and have instead become mastered by SDN.
He found out that many of the METCO students had been first referred for special education services back in first and second grade as they failed to master foundational reading skills.
George Ford kicked three penalties and a conversion for Bath, with Anthony Perenise crossing the line from a rolling maul and a late penalty try sealing the win, as the home side failed to master the wind and rain in the season's opener.
The new functional skills tests will be incorporated for those who failed to master spelling, grammar and arithmetic at school.
Even as Colonial Secretary in 1966, he was so dispirited that he failed to master his brief and was quickly removed.
