The part of a sentence "give testimony about" is correct and usable in written English.
It is typically used when talking about someone providing a statement or evidence in a legal or formal setting. Example: The witness was called to the stand and asked to give testimony about the events that took place on the night of the crime.
Rehan asked the father to give testimony about what happened, but he refused.
Trading amnesty for truth, people from both sides of the struggle came forward to give testimony about the brutality of the apartheid regime.
It will be performed at least in part by Indian women who will give testimony about sexual violence and intimidation that they have themselves experienced.
Each year, Cal invites friends to join him to hear a born-again Christian give testimony about his or her experience.
In the parliament we have very direct contact with people who come to give testimonies about some of the crises we're experiencing, such as the refugee crisis.
When Crockett joined the religious order, based in Cantabria in northern Spain, at the age of 18, she gave testimony about her previous life before becoming a nun.
In 1999, Judge Ralph G. Thompson of Federal District Court in Oklahoma City ruled that Ms. Gilchrist had given testimony about hair and fluid evidence in the case of Alfred Brian Mitchell that "was terribly misleading, if not false".
In another case, an investigating officer is giving testimony about the forensic conditions of Tillman's death but is taken out of the room, only to soften his remarks.
The appeal court judgment – which was made before the retrial, but can only now be reported – allowed new evidence from two witnesses who gave testimony about the complainant's sexual preferences and the language she used during sex.
This is also the view of the organization Breaking the Silence, a group of military reservists who have given testimony about receiving orders in the war to shoot or destroy in ways that violated ethical standards and the military's own code.
