je n'arrive plus à

I can no longer

→ je
phrase Rare #26,635
I can no longer Used with an infinitive to say that you are no longer able to do something. The verb arriver is conjugated according to the subject, so the phrase can also be j'arrive plus à, il n'arrive plus à, etc. The second example is vulgar and means “I can no longer get an erection.”
FR: Je n'arrive plus à dormir depuis quelques jours.
EN: I haven't been able to sleep for a few days.

Je n'arrive plus à réfléchir.

I can't think anymore.

Je n'arrive plus à manger.

I can't eat anymore.

Je n'arrive plus à faire ça.

I can’t do this anymore.

Je n'arrive plus à supporter cette douleur.

I can't bear this pain anymore.

Je n'arrive plus à me rappeler la mélodie de cette chanson.

I can’t remember the melody of this song anymore.

Je n'arrive plus à le supporter.

I can’t stand him anymore.

Je n'arrive plus à penser.

I can't think anymore.

Je n'arrive plus à m'adapter à cette vie, à cette ville.

I can no longer adapt to this life, to this city.

— La grande bellezza (2013)

J'ai oublié mon parapluie ici, mais je n'arrive plus à le trouver.

I left my umbrella here, but I can't find it anymore.

Je n'arrive plus à bander.

I can't get hard anymore.