The Sydney man stabbed by convicted terrorist Ihsas Khan said he can never forgive the ISIS supporter, as he continues to struggle with pain and mental health issues.

Wayne Greenhalgh was out for his afternoon walk in Minto in Sydney's south-west on September 10, 2016, when Khan, his neighbour attacked him with what looked like a machete.

He stabbed Mr Greenhalgh multiple times.

Wayne Greenhalgh says he is still suffering after being attacked by ISIS supporter Ihsas Khan. (A Current Affair)

Another neighbour, Sevei Ah Chong, used a fence paling to try to fend Khan away, giving Mr Greenhalgh time to escape to a nearby hair salon.

Khan tried to get inside, with neighbours unable to disarm him.

"I've never been cut with a knife before and it's pretty daunting, pretty terrifying," Mr Greenhalgh told A Current Affair .

"He's saying 'Allah, I want you dead' or something like that, crap like that. I couldn't remember a lot of things, but I remember them words, 'Allah, Allah'."

Mr Greenhalgh said he couldn't forgive Khan for the attack. (A Current Affair)

Khan was finally tased by police, but the paramedics working to save Mr Greenhalgh's life were unaware they were treating a terror attack victim.

He said he could remember his fight to survive.

"When they eventually got the tourniquet on, and they got me into the ambulance, it was funny because I was nodding off, and I was thinking to myself - fair dinkum - I was thinking, 'I'm going to go now'," he said.

"And I went under, and I woke up again at the hospital, and I honestly thought I'd gone, that was it."

Neighbours tried to contain Khan. (A Current Affair)

He said since being attacked, his life was a struggle of surgeries, emotional trauma, and nightmares.

"When I wake up, it's as if I'm still running away from him," Mr Greenhalgh said.

"It's weird, but hopefully one day it will go away."

And he said he carried a lot of anger towards Khan.

Mr Greenhalgh said he had apparently been targeted for previously wearing a shirt with a US symbol. (A Current Affair)

"I'd love to have five minutes alone with him, to be honest," Mr Greenhalgh said.

"To be brutally honest, I'd beat the absolute hell out of him, and I don't care. I'd be quite happy just to go in a room, somebody lock the door and throw the key away, and leave me with him."

He said the attack had hurt his family, while his injuries had ended his career as a cabinet maker - the only job he'd done since he was 16.

Khan has been found guilty of committing a terrorist attack. (A Current Affair)

Mr Greenhalgh is getting through the days with medication, counselling, and his wife Bronwyn's love and support.

He said the anti-depressants and powerful painkillers he had been prescribed had been affecting him, particularly his memory.

And since the attack, Mr Greenhalgh has learned he was targeted because of a t-shirt he wore with a US symbol on it - one he no longer owns.

"I didn't even think I'd worn it for six months, but apparently Khan reckons because I was wearing that t-shirt, I was American, and he was after me because of that," he said.

Mr Greenhalgh said he remembered fighting for his life. (A Current Affair)

The Greenhalghs crossed paths with Khan on their morning work earlier on the day Mr Greenhalgh was attacked.

"He had a little book in his hand and he just seemed to look more at Wayne than me, then he just turned around and went inside," Mrs Greenhalgh said.

Mr Greenhalgh has had to relive the worst day of his life in detail six times now, with six trials required before a verdict on Khan was finally delivered.

Four trials were aborted, with Khan's mental capacity brought into question, while the fifth jury could not reach a verdict.

Wayne and Bronwyn Greenhalgh now live on the Gold Coast in Queensland. (A Current Affair)

Finally, at the sixth trial, Khan was found guilty of committing a terrorist attack.

He faces the possibility of a life sentence.

"There's going to be terrorists around, and hopefully they get what they deserve," Mr Greenhalgh said.

"I'd hate to see the Aussie people going and hurting people that haven't hurt them, either."

Mr Greenhalgh now volunteers to drive the elderly to medical appointments. (A Current Affair)

The Greenhalghs now live on the Gold Coast, where Mr Greenhalgh volunteers three days a week driving the elderly to medical appointments.

"No-one is going to beat me," Mr Greenhalgh said.