Astreindre belong to the 3rd
group. Astreindre is a common french verb.
Astreindre is conjugated the same way that verbs that end in : -ndre
Astreindre is conjugated with auxiliary avoir
Astreindre verb is
French verb astreindre can be conjugated in the reflexive form: S'astreindre
verb is a direct transitive verb, so passive voice can be used.