The phrase "successfully performing" is correct and usable in written English.
It is often used in the context of accomplishing a task. For example, "The team was successful in performing the task."
This is somewhat fitting because successfully performing the anthem is practically an athletic feat.
After successfully performing a Caesarean section on Dr. Gedz at Beth Israel Medical Center in September, Dr. Zarkin stunned nurses by carving his initials into Dr. Gedz's belly.
When he was 25, he moved to Havana, where he spent several years successfully performing in bars and clubs before joining Los Zafiros in 1963.
Scientists across the world learnt from them and were soon successfully performing IVF, and offering hope to thousands of couples with fertility problems.
In a subsequent experiment, villagers were randomly assigned to treatment or control groups; treated villagers saw an educational play showing women successfully performing leadership roles.
Each of these presents unique challenges to arthroscopy but are overcome by understanding and applying the basic principles necessary for successfully performing this procedure.
So far, however, no one has successfully performed this feat.
Is it because two-thirds of his trilogy was very successfully performed under Nazi auspices?
She bought surgical equipment and successfully performed the operation on herself.
Someone with international experience and excellent client management skills could successfully perform this role.
"This would revolutionize the sport of diving if successfully performed in competition," they say.
