Toto pole je velké.

Because pole is a neuter noun, and Czech demonstratives must agree with the noun they describe.

The basic forms of this/that are:

• ten for masculine
• ta for feminine
• to / toto for neuter

Since pole is neuter, you use toto pole.

A quick comparison:

• ten dům = this/that house (masculine)
• ta kniha = this/that book (feminine)
• toto pole = this field (neuter)

Toto is a more explicit or slightly more formal form of this. In everyday speech, people also often say tohle pole.

In this sentence, you can tell from the agreement:

• toto is neuter
• velké is neuter
• so pole must also be neuter

More generally, many Czech nouns ending in -o, -e, or -í are neuter, and pole is one of them.

So:

• pole = neuter singular noun
• nominative singular form = pole

That is why the other words around it also take neuter singular forms.

Because adjectives in Czech must agree with the noun in:

• gender
• number
• case

Here, pole is:

• neuter
• singular
• nominative

So the adjective must also be neuter singular nominative:

• masculine: velký
• feminine: velká
• neuter: velké

Examples:

• velký dům = a big house
• velká zahrada = a big garden
• velké pole = a big field

Je is the 3rd person singular present tense form of the verb být, which means to be.

So:

• jsem = I am
• jsi = you are
• je = he/she/it is

In Toto pole je velké, je means is.

Because Czech does not have articles like English a/an and the.

So pole can mean:

• a field
• the field

The exact meaning depends on context.

In this sentence, toto already points to a specific thing, so English usually uses this field.

The basic word order here is very natural and neutral:

• Toto pole = subject
• je = verb
• velké = predicate adjective

So Toto pole je velké is the most straightforward way to say it.

However, Czech word order is more flexible than English. You may also see changes for emphasis, such as:

• Velké je toto pole. = emphasis on big
• To pole je velké. = that/this field is big

Not every possible rearrangement sounds equally natural in every context, but Czech does allow more movement than English.

Yes.

These are all possible, but they differ slightly in style or emphasis:

• Toto pole je velké. = correct, a bit more careful or formal
• Tohle pole je velké. = very common in everyday speech, this field is big
• To pole je velké. = often that field is big, but in some contexts to can also work more loosely

For a learner, a useful rule is:

• toto = standard/written/formal this
• tohle = very common spoken this

A rough English-friendly guide is:

to-to po-le ye vel-kay

More carefully:

• toto → TO-to
• pole → PO-le
• je → roughly ye
• velké → VEL-kay

A few pronunciation notes:

• Czech j sounds like English y in yes
• e is usually a clear eh sound
• é is a long vowel, so velké has a longer final vowel than a short e

Stress in Czech usually falls on the first syllable of the word:

• TOto
• POle
• JE
• VELké

It is nominative singular.

That is because pole is the subject of the sentence:

• Toto pole = this field
• je velké = is big

Subjects are normally in the nominative case in Czech.

So this sentence is a good basic example of:

• subject in nominative
• form of být
• adjective agreeing with the subject

Yes. Pole has several meanings depending on context.

Common ones include:

• field (piece of land)
• area / domain
• array (in mathematics or computing)
• position / square / cell in some contexts

So if you see pole elsewhere, do not assume it always means a physical field. In this sentence, though, the grammar is the same regardless of which meaning is intended.

Yes, absolutely.

• Pole je velké. = The field is big / A field is big / The field is large

This is grammatical and natural. Adding toto makes it more specific:

• Pole je velké. = the field is big
• Toto pole je velké. = this field is big

So toto is not required for grammar, but it adds deixis: it points to a specific field.

Because after být (to be), Czech uses an adjective to describe the subject.

So:

• pole = noun
• je = is
• velké = adjective describing the noun

This works like English:

• The field is big.

You are not modifying the verb is; you are describing the field, so Czech uses the adjective form that agrees with pole.

The dictionary forms are:

• tento / tato / toto = this
• pole = field
• být = to be
• velký = big, large

A beginner-friendly way to connect them to the sentence is:

• toto comes from the demonstrative ten / ta / to, often listed in fuller paradigms with forms like tento, tato, toto
• pole is already in its dictionary form
• je comes from být
• velké comes from velký

So when learning vocabulary, you would usually store:

• pole
• být
• velký
• and the demonstrative set ten / ta / to or tento / tato / toto