Chaloir belong to the 3rd group.
Chaloir is conjugated the same way that verbs that end in : -loir
Chaloir is conjugated with auxiliary avoir.
Chaloir is a defective verb.
It can not be conjugated in all possible forms.
Chaloir is a defective verb.
This verb only exists in infinitive and in third person present indicative.
Here are several examples of defectives verbs: bruire, distraire, traire, extraire, soustraire, paître.
Finally, the interrogative form does not exist in subjunctive and imperative.
CHALOIR : v. intr. Ancien verbe qui ne s'emploie qu'impersonnellement et ne se dit que dans ces expressions : Il ne m'en chaut. Il ne m'en chaut guère, Il ne m'importe.