Separate auxiliary agreement from participle agreement
By UK GCSE French · independent study · myAudience

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Separate auxiliary agreement from participle agreement
Auxiliary agreement and participle agreement answer different questions. In « Elles ont regardé le livre », ont agrees with the plural subject. Regardé does not acquire es simply because the subject is elles. In « Elles sont allées au parc », both sont and allées reflect the subject. Start by identifying the auxiliary before choosing an ending.
With avoir, a participle does not agree with the subject. In the ordinary examples here, the direct object follows the verb: « Elle a regardé la page » and « Ils ont choisi le livre ». The participles remain regardé and choisi. This is a precise pattern, not the broader claim that avoir participles can never agree with anything.
A direct object placed before an avoir verb can affect participle agreement. That requires identifying its grammatical role and position. It is a separate issue from subject agreement, with particular constructions and exceptions. Do not add a feminine ending just because a feminine noun occurs somewhere in the sentence. The exercises here keep the object after the verb so the distinction stays clear.
Use a three-step editing routine: find the subject, identify the auxiliary, then check the participle rule for that construction. An invented contrast is « Léa a regardé le livre. Ensuite, elle est allée au parc. » The same named person appears in both clauses, but the two participles follow different agreement rules.
Compare two accounts of the same explicitly female group: « Léa et Samira sont allées au parc. Elles ont regardé les images. » Sont follows the plural subject, and allées agrees with that subject in this use of aller with être. Ont also follows the plural subject, but regardé stays unchanged with avoir and the direct object les images placed after the verb. The contrast requires two checks, not a single instruction to make everything plural. Decide the auxiliary first, then apply the relevant agreement rule. A noun's plural ending elsewhere in the sentence is not permission to add -s to every nearby verb form.
Repair « Elles est allé au parc et elles ont regardées les images » for those two people. The model is « Elles sont allées au parc et elles ont regardé les images. » Est becomes sont, allé becomes allées, and regardées loses -es. Each repair has a different justification: subject–auxiliary agreement, subject–participle agreement with this être construction, then the absence of a preceding direct object with avoir. Do not turn the last example into the false rule that avoir participles never agree: preceding direct objects introduce a separate construction not practised here. These sentences deliberately keep their objects after the verb so that the bounded comparison remains valid.
Worked example: Complete « Elles ont regard___ le livre. Elles sont all___ au parc ».
After avoir, the following object does not trigger agreement: regardé.
After être with aller, use feminine plural agreement: allées.
Answer: Elles ont regardé le livre. Elles sont allées au parc.
Check your understanding: Should « Elle a regardé la table » become « Elle a regardée la table » because elle and table are feminine?
Answer: No. Elle a regardé la table is correct.
Why: The participle does not agree with the subject, and the direct object la table comes after it.