make an affidavit

Council planning officer Kate Bingham sad Mr Rees did not want to make an affidavit in support of his claims contesting what his mum had declared.

From BBC ● Dec. 31, 2025

He told the court he was never coerced, threatened or forced to make an affidavit undermining his son's credibility.

From BBC ● Oct. 16, 2013

I have therefore taken the trouble to ascertain from the employe in charge that our flag was half-staffed on the day of Secretary Good's funeral, and will make an affidavit to that effect if necessary.

From Time Magazine Archive

Q. Did you make an affidavit upon this business?

From The Trial of Charles Random de Berenger, Sir Thomas Cochrane, commonly called Lord Cochrane, the Hon. Andrew Cochrane Johnstone, Richard Gathorne Butt, Ralph Sandom, Alexander M'Rae, John Peter Holloway, and Henry Lyte for A Conspiracy In the Court of King's Bench, Guildhall, on Wednesday the 8th, and Thursday the 9th of June, 1814 by Gurney, William Brodie

He was even ready to make an affidavit that he had been slaughtered.

From Autobiography of a Pocket-Handkerchief by Cooper, James Fenimore