Każdy kajak ma wiosło.

Because każdy has to agree with the noun it describes.

Kajak is:

• masculine
• singular
• nominative here

So the correct form is każdy.

Compare:

• każdy kajak = every kayak
• każda łódź = every boat
• każde wiosło = every paddle

Polish adjectives and words like każdy change form depending on the gender, number, and case of the noun.

In both Polish and English, every/each normally goes with a singular noun.

So:

• Każdy kajak ma wiosło. literally follows the same logic as
• Every kayak has a paddle.

Even though the meaning refers to all kayaks in general, the grammar is singular:

• każdy = every/each
• kajak = singular
• ma = singular has

Because the subject is grammatically singular: każdy kajak.

The verb ma is the 3rd person singular form of mieć (to have).

A quick comparison:

• Każdy kajak ma wiosło. = Every kayak has a paddle.
• Wszystkie kajaki mają wiosła. = All kayaks have paddles.

So with każdy + singular noun, you normally use a singular verb.

Ma is from the verb mieć (to have).

Present tense forms of mieć:

• mam = I have
• masz = you have
• ma = he/she/it has
• mamy = we have
• macie = you all have
• mają = they have

So in Każdy kajak ma wiosło, ma means has.

Kajak is in the nominative case, because it is the subject of the sentence.

The subject is:

• każdy kajak = every kayak

In dictionary form, kajak is already nominative singular, so it stays:

• kajak

Yes, the object after ma is in the accusative case.

However, wiosło is a neuter singular noun, and for many neuter nouns, the accusative singular looks exactly the same as the nominative singular.

So:

• nominative: wiosło
• accusative: wiosło

That is why you do not see a visible change here.

Because this sentence is talking about one paddle per kayak, so singular makes sense:

• Każdy kajak ma wiosło. = Every kayak has a paddle.

Also, after każdy the sentence structure usually stays singular:

• każdy kajak ma not
• każdy kajak mają

Be careful, though: wiosła can mean different things depending on grammar:

• wiosła = plural nominative/accusative of wiosło (paddles)
• wiosła can also be a different case form in other contexts

Here, the basic singular wiosło is the right choice.

It can be translated as paddle or oar, depending on context.

In the sentence Każdy kajak ma wiosło, the most natural English meaning is usually paddle, because kayaks normally use paddles.

So although wiosło can be a broader word in Polish, in this sentence paddle is the best everyday translation.

The neutral, standard order is:

• Każdy kajak ma wiosło.

Polish word order is more flexible than English, so other orders are possible, but they may sound marked or emphasize something.

For example:

• Wiosło ma każdy kajak. = A paddle is what every kayak has. / Every kayak has a paddle.
• Ma każdy kajak wiosło. = possible, but much less natural in ordinary speech

So for a learner, Każdy kajak ma wiosło is the safest and most natural version.

A rough pronunciation guide:

• Każdy ≈ KAZH-dih
• kajak ≈ KA-yak
• ma ≈ mah
• wiosło ≈ VYOS-two or VYOS-wo depending on how carefully it is pronounced

A few useful notes:

• ż sounds like the s in measure
• j sounds like English y
• w sounds like English v
• ł sounds like English w
• Polish stress is usually on the second-to-last syllable

So the sentence stress pattern is roughly:

• KAŻ-dy KA-jak ma WIO-sło

Because Polish has no articles like English a/an/the.

So:

• kajak can mean a kayak or the kayak, depending on context
• wiosło can mean a paddle, the paddle, or just paddle in a general sense

In this sentence:

• Każdy kajak ma wiosło is understood as
• Every kayak has a paddle

Polish relies on context instead of articles.

Not directly in this sentence, because każdy means every/each, while wszystkie means all.

Compare:

• Każdy kajak ma wiosło. = Every kayak has a paddle.
• Wszystkie kajaki mają wiosła. = All kayaks have paddles.

Notice how the grammar changes:

• każdy kajak → singular
• wszystkie kajaki → plural
• ma → singular verb
• mają → plural verb

So każdy and wszystkie are similar in meaning, but they are not used the same way grammatically.