Explanation:
Simple Conjugations of the Irregular '-ir-' Verb 'Asseoir'
This is the old form, considered more common, nicer, more polite, and more prestigious. It is a pure third-group irregular conjugation.
Present Future Imperfect Present participle
j' assieds assiérai asseyais asseyant
tu assieds assiéras asseyais
il assied assiéra asseyait
nous asseyons assiérons asseyions
vous asseyez assiérez asseyiez
ils asseyent assiéront asseyaient
