Learn French: Tu as oublié de serrer le boulon. - You forgot to tighten the bolt.

Tu as oublié de serrer le boulon.

You forgot to tighten the bolt.

Breakdown of Tu as oublié de serrer le boulon.

you (informal singular)

him, it (masculine direct object pronoun)

Questions & Answers about Tu as oublié de serrer le boulon.

How could I use the target phrase n'importe lequel to reply to this statement if I don't care which bolt gets tightened?

If someone asks which bolt they should have tightened (Lequel ?), you can reply with N'importe lequel (Any of them / It doesn't matter which one). You use the masculine singular lequel here to match the masculine noun le boulon.

Why is it oublié de serrer and not just oublié serrer?

In French, the verb oublier (to forget) requires the preposition de before a following infinitive. It is a set pattern you have to memorize, much like how décider also takes de, but réussir takes à.

Does serrer only mean to tighten in the context of tools and hardware?

Not at all! Serrer is a versatile verb meaning to squeeze, press, or hold tightly. You can use it to say serrer la main (to shake hands) or serrer quelqu'un dans ses bras (to hug someone). When talking about a bolt (un boulon), it specifically translates as to tighten.

What is the difference between un boulon and une vis, and how does it affect our current lesson's grammar?