To prepare for November: the benchmark gas price rises 6.6%. What effect on your contract?

Tous les contrats ne suivent pas cette variation.

Normally ne and pas wrap the verb. Before a vowel, ne becomes n’. Check which part of the sentence the negation covers. Ne … plus means “no longer”.

Selon la CRE, l’effet moyen pour les offres indexées sur ce repère est d’environ 12 euros supplémentaires par mois.

Selon means “according to”. Put a person or organisation after it as the source. It separates facts the writer checked directly from what another body or report said. Citing a source does not turn a forecast into an accomplished fact.

C’est une référence pour comparer les offres, pas un contrat auquel on peut souscrire.

Put a base-form verb after pouvoir. Peut means “can” or “may”; the conditional pourrait gives a more reserved possibility, “might”. It does not necessarily mean implementation is settled.

C’est une référence pour comparer les offres, pas un contrat auquel on peut souscrire.

This is the purpose, “in order to…”. Put the base form of a verb after pour. The purpose stated here is separate from whether the effect was actually achieved.

Les offres à prix fixe ne sont pas affectées par cette variation.

Est is third-person singular and sont third-person plural of être. They express “is / are” — a state or description. If a past participle follows, it is a different structure such as the passive, so check the words that follow.

Retour sur l’annonce du 12 octobre, avant le changement de mois.

Le 15 octobre means “on 15 October”. Distinguish the le before a date from the le that marks a weekly habit like a weekday. Du is de + le and au is à + le, so decide the meaning from the verb and period expressions around them. Their role depends on the group: a range of dates, the date of a bulletin or another complement.

CREによると、この目安に連動する契約では、平均的な月額への影響は約12ユーロの増加です。

As in “LCPによると”, it shows where the information comes from. What that source reported follows. It is used differently from “私にとって”, which gives one’s own opinion.

すべての契約が同じように値上がりするわけではありません。

These forms limit and deny an interpretation: “it does not necessarily follow” or “that is not what is meant”. They do not necessarily deny every fact in the sentence. Read what is being denied together with the earlier part.

この目安価格は、契約を比較するための参考で、その価格で直接申し込める商品ではありません。

They negate a noun and similar content. “ではありません” is the polite form and “ではない” the plain form. “成立ではありません” shows that it cannot be said to have been concluded.

この目安価格は、契約を比較するための参考で、その価格で直接申し込める商品ではありません。

ため is used for both reason and purpose. “成立ではないため” is a reason and “運転手を守るため” a purpose. Decide from the whole sentence whether what precedes is a cause or a goal.

エネルギー規制委員会（CRE）は、11月のガスの目安価格を、税込みで1MWh当たり194.90ユーロと発表しました。

In “発表しました”, ました makes a verb polite past. The negative is “ませんでした”. Read the actual date together with the date and time in the text.

エネルギー規制委員会（CRE）は、11月のガスの目安価格を、税込みで1MWh当たり194.90ユーロと発表しました。

と takes the content that is reported or explained. In “改定する方針だと報じました”, “改定する方針だ” is what the report said. Separating the content from who said it and how makes long sentences easier to read.