Je mets les amandes dans le sachet.

Because the subject is je.

The verb is mettre (to put), and in the present tense it changes like this:

• je mets
• tu mets
• il/elle/on met
• nous mettons
• vous mettez
• ils/elles mettent

So je mets means I put or I am putting.

Yes. Mettre is not fully regular.

It has a stem change pattern in the present tense:

• singular forms: mets, mets, met
• plural forms: mettons, mettez
• third person plural: mettent

A helpful thing to notice is that the t stays in the spelling, but the endings are not exactly like a regular -re verb in every form.

The final s in mets is normally silent.

So je mets sounds roughly like:

• je → like zhuh
• mets → like may

Together: zhuh may

Also, mets, met, and mais can sound the same in normal speech.

In French, you usually need an article before a noun.

So French often says:

• les amandes = the almonds

Even where English might sometimes say just almonds, French usually keeps the article. In this sentence, les amandes refers to the almonds being talked about in the situation.

Both can be possible, but they mean slightly different things.

• le sachet = the bag / the packet
• un sachet = a bag / a packet

If the sentence says le sachet, it suggests a specific bag is already known from the context.

So:

• Je mets les amandes dans le sachet = I put the almonds into the bag
• Je mets les amandes dans un sachet = I put the almonds into a bag

Dans means in or into, depending on context.

Here it shows movement into something:

• dans le sachet = into the bag

French uses dans very naturally for putting something inside a container.

Examples:

• Je mets le livre dans le sac.
• Il met les clés dans la poche.

Because dans is the normal preposition for putting something inside a container.

• dans le sachet = inside / into the bag

Au sachet would not work here.

En sachet means something different: it describes the form or packaging, like in packet form or packaged in a small bag, not the action of putting something into a specific bag.

So:

• Je mets les amandes dans le sachet = I put the almonds into the bag
• des amandes en sachet = almonds sold in a packet / bagged almonds

Because this sentence follows the standard French word order:

subject + verb + direct object + prepositional phrase

So:

• Je = subject
• mets = verb
• les amandes = direct object
• dans le sachet = where they are being put

This is very close to English:

• I put the almonds in the bag

That makes this sentence quite straightforward for English speakers.

Yes, sometimes.

The most natural order here is:

• Je mets les amandes dans le sachet.

But you may also hear:

• Je mets dans le sachet les amandes.

That version is possible, but it is less neutral and may sound more marked or focused, depending on context.

For learners, the safest choice is the original order:

• Je mets les amandes dans le sachet.

Not exactly.

• un sac = a bag, often a larger or more general bag
• un sachet = a small bag, packet, pouch, or little sack

So sachet often suggests something smaller, like packaging or a small container for food or powder.

In this sentence, sachet fits well for almonds if they are being placed into a small bag or packet.

Yes.

The s in les is normally silent, but before a vowel sound it links to the next word. So:

• les amandes is pronounced roughly lay-zamand

That z sound is the liaison.

This is very common:

• les enfants
• les amis
• les amandes

It can mean either one, depending on context.

French present tense often covers both:

• I put
• I am putting

So Je mets les amandes dans le sachet could mean:

• I put the almonds in the bag or
• I am putting the almonds in the bag

If you want to be extra explicit about right now, French can also say:

• Je suis en train de mettre les amandes dans le sachet.

But the simple present is very common and natural.

Yes, if you are talking about one almond.

Then you would say:

• Je mets l’amande dans le sachet. = I put the almond in the bag.

Notice the article changes:

• les amandes for plural
• l’amande for singular, because amande begins with a vowel sound

Because French usually shortens la before a vowel or silent h.

So:

• la amande → l’amande

This is called elision.

Other examples:

• l’école
• l’image
• l’huile

So if the sentence were singular, it would be:

• Je mets l’amande dans le sachet.