איזה סוג כלב זה?

• איזה = which / what kind of
• סוג = type / kind
• כלב = dog
• זה = this

So the structure is literally close to what kind of dog is this?

Because in Hebrew, the verb to be is usually left out in the present tense.

So where English says:

• What kind of dog is this?

Hebrew naturally says:

• איזה סוג כלב זה?
• literally: what kind of dog this?

That is completely normal Hebrew grammar.

Hebrew often uses a noun + noun structure where English uses noun + of + noun.

So:

• סוג כלב = type of dog

This is called the construct chain (סמיכות).
With סוג, the form does not visibly change, so it just looks like two nouns next to each other.

Yes. איזה סוג של כלב זה? is also correct and very common.

The difference is mainly style:

• איזה סוג כלב זה? = a bit tighter and more compact
• איזה סוג של כלב זה? = a bit more explicit, often very natural in speech

Both mean the same thing here.

In this kind of Hebrew sentence, the question phrase comes first, and זה comes after it.

So Hebrew organizes it like this:

• איזה סוג כלב = what kind of dog
• זה = this

That gives:

• איזה סוג כלב זה?
• literally: what kind of dog is this?

This word order is very normal in identification questions.

Because איזה is the masculine singular form, and it agrees with סוג, which is masculine.

Important point: the question word agrees with the main noun it is attached to. Here that noun is סוג (type), not כלב.

So:

• איזה סוג... = what kind/type... because סוג is masculine
• If the main noun were feminine, you would use איזו

For example:

• איזו חיה זאת? = What animal is that/this?

Because the sentence is asking about the type of one dog.

English does the same thing:

• What kind of dog is this?
  not usually
• What kind of dogs is this?

In Hebrew, singular is natural here because you are classifying a single animal.

If you were talking about kinds of dogs in general, you might use a plural expression such as:

• סוגי כלבים = types of dogs

They are similar, but not the same.

• איזה סוג כלב זה? = What kind of dog is this?
  This asks about the dog's type/breed/category.

• איזה כלב זה? = Which dog is this? / What dog is this?
  This can sound more like you are trying to identify the specific dog, not its breed.

So if you want to ask about the dog's kind or breed, סוג makes that clearer.

Yes. The more specific word is גזע, which means breed.

So you might also hear:

• איזה גזע זה? = What breed is this?
• מאיזה גזע הוא? = What breed is he? / What breed is it?

Use סוג for a broader kind/type, and גזע when you specifically mean breed.

A simple pronunciation guide is:

• EH-zeh soog KEH-lev zeh?

Word by word:

• איזה = EH-zeh
• סוג = soog
• כלב = KEH-lev
• זה = zeh

A rough full transliteration is:

• Eize sug kelev ze?

The main stress is usually:

• EH-zeh
• KEH-lev