Le chiot est vif quand il voit sa laisse.

Le chiot means the puppy, while un chiot means a puppy.

French often uses the definite article (le, la, les) when talking about a specific thing or when the thing is already understood in context. So:

• Le chiot = the puppy
• Un chiot = a puppy

If the sentence is about one particular puppy, le chiot is the natural choice.

Chiot means puppy, while chien means dog.

So:

• un chiot = a puppy
• un chien = a dog

A learner might also notice that both are masculine nouns, which is why you get le chiot rather than la chiot.

Here, vif means something like lively, animated, full of energy, or quick in its reactions.

So Le chiot est vif suggests that the puppy becomes energetic or animated.

This is not exactly the same as English vivid or alive. A common mistake is to connect vif too closely to English words that look similar. In this sentence, vif is describing the puppy’s behavior or energy level.

Because chiot is a masculine singular noun.

French adjectives usually agree with the noun they describe:

• masculine singular: vif
• feminine singular: vive
• masculine/feminine plural: vifs / vives

Since le chiot is masculine singular, the adjective stays vif.

This word order is actually very close to English:

• Le chiot = The puppy
• est vif = is lively
• quand = when
• il voit sa laisse = he sees his leash

So the structure is:

subject + verb + adjective + quand + subject + verb + object

French often follows a straightforward word order in simple sentences like this one, so this sentence maps quite neatly onto English.

In this sentence, quand means when.

So:

• quand il voit sa laisse = when he sees his leash

In many cases, quand is the normal translation for when. French also has lorsque, which can often mean the same thing, but quand is very common and natural here.

Voit is the third-person singular present form of the verb voir (to see).

Present tense of voir:

• je vois
• tu vois
• il/elle/on voit
• nous voyons
• vous voyez
• ils/elles voient

So il voit means he sees.

A learner might expect something more regular, but voir is an irregular verb, so its forms need to be learned.

Yes. In French, you normally must state the subject pronoun.

In English, you also say when he sees his leash, not just when sees his leash. French works the same way here:

• quand il voit sa laisse

You cannot normally leave out il in standard French.

Because laisse is a feminine singular noun.

French possessive adjectives agree with the thing possessed, not with the owner.

So:

• son = for a masculine singular noun
• sa = for a feminine singular noun
• ses = for a plural noun

Since laisse is feminine, French uses sa:

• sa laisse = his leash / her leash / its leash

This can feel strange to English speakers, because English his/her agrees with the owner, but French son/sa/ses agrees with the noun that follows.

It can mean his, her, or its, depending on context.

French sa only tells you that the noun laisse is feminine singular. It does not by itself tell you the gender of the owner.

So sa laisse could mean:

• his leash
• her leash
• its leash

In this sentence, since the subject is le chiot, English would most naturally interpret it as its leash or sometimes his leash.

Laisse means leash.

In everyday use, it often refers to a leash for a dog or puppy, which fits perfectly here. Depending on context, it can also be translated as lead in British English.

So:

• sa laisse = its leash / his leash / her leash

Voit is pronounced roughly like vwah.

Important points:

• The oi in modern French usually sounds like wa
• The final t in voit is not pronounced

So il voit sounds roughly like eel vwah.

That silent final consonant is very common in French.

Yes, you could, but it means something slightly different.

• vif = lively, quick, animated
• excité = excited

So:

• Le chiot est vif... focuses on the puppy being energetic or animated
• Le chiot est excité... focuses more directly on excitement

Both can work, but vif has a slightly broader sense of liveliness rather than just emotional excitement.