Despite this horrible form Liverpool can still finish the season in top 4 actually. The point gap is not as big as they can't close up with Newcastle now. They just need to start getting better in defense and make it consistent at the same time. Their defending wasn't good enough against Nottingham and Leeds both. Then they should have been able to score more goals and make up for it. But there were serious issues there as well.
In this case they aren't a team that can be relied on in nearly any games in the league. Klopp's time might run out at Liverpool if they don't improve their results in the near future.
I don't think they can get themselves back into the top 4 they will have players leave for the world Cup and after that expect injuries and fatigue player's. The longer they stay in the competition the more they get tired and with a high chance of players returning injured.
If you look at the top four right Tottenham seem to be the team to leave the top 4 because Thay have been bad, it's sad to say that Chelsea and Liverpool cannot make it this season, they will try but not get inside.
Chelsea are also in trouble undoubtedly. I don't expect them to finish the season ahead of Liverpool honestly. Liverpool have a more capable attacking line at the moment. Maybe they have weaknesses in defense just as Chelsea but they have many game changers at the same time. They just need those players to play consistently. For example Salah's performance can play a critical role if he manages to start performing better. Mane's departure affected his performance badly as far as I can see. But he needs to adapt to playing without him. Besides he isn't the main problem of course. They need to improve as a team.