A woman who killed a man by driving her ute directly into him and dragging him for more than 10 metres has been sentenced to nine years in prison.

Key points: Nathan Freer died after being hit by a ute in SA's Flinders Ranges in November 2017

Nathan Freer died after being hit by a ute in SA's Flinders Ranges in November 2017 The driver of the ute has been sentenced to nine years in prison

The driver of the ute has been sentenced to nine years in prison The court heard the victim had recovered from cancer not long before his death

Adriana Betty Tennant, 49, was found guilty of manslaughter over the death of father-of-two Nathan Freer at Quorn, in South Australia's Flinders Ranges in November 2017.

During her trial, the Supreme Court heard there had been a feud between Tennant's family and Mr Freer's family in the lead-up to his death.

The court heard the families used to get along until Mr Freer declined to lend a member of Tennant's family a trailer and from that time on, Mr Freer, his partner and their children were harassed and threatened by members of Tennant's family.

On Wednesday, Justice Trish Kelly sentenced Tennant to nine years in prison with a non-parole period of seven years, two months and two days.

Justice Kelly said she could not understand why Tennant and her husband had acted in the way they did.

"Over nothing more than them refusing to lend you a trailer," she said.

During a pre-sentencing hearing the court heard Mr Freer had recovered from advanced Hodgkin's lymphoma not long before his death.

Through a victim impact statement, his partner Angie Dowling said Mr Freer's death had shattered her life.

"I am angry and full of hatred," she said.

"We have been given a life sentence of pain and suffering.

"I hope one day, for the sake of my children, I can move on."

Victim described as a 'caring' and 'joking father'

Ms Dowling said Mr Freer was her soulmate.

"We did everything together … Nathan was a kind, caring, joking father," she said.

"Nathan was always positive, even when going through cancer."

Tennant's defence lawyer Grahame Lang told the court that his client has an intellectual disability and limited ability to converse.

"This is her first experience with significant incarceration," he said.

"She is very, very sorry … she wishes it had never happened."

Incident occurred after beer bottle thrown

During the trial, the court heard Tennant drove directly at Mr Freer after he threw a beer bottle at her vehicle.

He was thrown onto the bonnet before he fell underneath and was dragged more than 10 metres.

South Australian Supreme Court Justice Trish Kelly handed down her sentence in the Supreme Court. ( ABC News )

He died shortly after from multiple injuries, while Tennant crashed her ute through a chain mesh fence, down an embankment and into a tree.

In finding Tennant not guilty of murder, Justice Kelly said she could not be satisfied with the evidence presented at the trial that Tennant intended to kill Mr Freer or to cause him grievous bodily harm.

"The events unfolded so rapidly that I am not convinced that the accused formed any specific intention at all other than to knock the deceased down," she said.

Tennant was disqualified from holding a driver's licence for 12 years.