United have lost their opening two UEFA Champions League games of the season which seems them bottom of their group.
They have lost six of their 10 games across all competitions to make it their worst start to a season for 37 years.
Ten Hag has come under pressure as a result but the former Ajax Amsterdam boss is keen to turn things around in his favour.
Asked whether he feared for his job, the Dutchman said: “Last season: brilliant, terrific, more than we could expect.
“We also knew in this project there would be common gaps. At this moment we are in a very difficult period as everyone can see but we come out together, we are fighting together, we are sticking together and we are behind each other. That is me, the directors, the team, all together we will fight.
“This is not us, we know we have to do better, with togetherness we will come out.
“If I give an explanation, then you will see as excuses, there are no excuses. We can’t make the errors we are now making. We have to do better, it is a simple fact, we have to win our games.”
The Red Devils will host Brentford in the Premier League on Saturday.
