Ja myślę tak samo.

Yes, Polish often omits subject pronouns because the verb form already shows who is doing the action.

So:

• Myślę tak samo. = I think the same way.
• Ja myślę tak samo. = also I think the same way, but with extra emphasis on I

Using ja can sound like:

• emphasis: I think so too
• contrast: I think that way, even if someone else does not
• a more explicit reply in conversation

In many situations, Myślę tak samo sounds more neutral and natural than Ja myślę tak samo.

Myślę is the 1st person singular form of the verb myśleć, which means to think.

So:

• myśleć = to think
• myślę = I think

The ending -ę is a very common ending for I in present-tense Polish verbs.

Because it is the present tense, first person singular form of myśleć.

A few forms of myśleć are:

• ja myślę = I think
• ty myślisz = you think
• on/ona/ono myśli = he/she/it thinks
• my myślimy = we think
• wy myślicie = you all think
• oni/one myślą = they think

So the -ę ending tells you the subject is I.

A rough guide is: MUSH-len or MISH-len, but neither English spelling is perfect.

A few helpful points:

• y is not the English ee sound; it is a short central vowel, somewhat like the vowel in roses for some speakers, but tenser
• ś is a soft sh-like sound
• l is a normal l
• final ę is a nasal vowel, though in everyday speech at the end of a word it is often pronounced less strongly nasal than in careful speech

The stress is on the first syllable:

• MYŚ-lę

Tak samo means the same way, similarly, or the same depending on context.

In this sentence, it means:

• I think the same way
• idiomatically: I think so too

It is a very common phrase in Polish.

Examples:

• Robię tak samo. = I do it the same way.
• Czuję tak samo. = I feel the same way.
• Myślę tak samo. = I think the same way.

They are very similar, but not exactly identical in emphasis.

• Ja myślę tak samo. = I think the same way.
• Też tak myślę. = I think so too.

Też means too / also, so Też tak myślę is often the most natural reply when agreeing with someone.

Compare:

• Masz rację. = You’re right.
• Też tak myślę. = I think so too.

Meanwhile, Ja myślę tak samo can sound a bit more explicit or contrastive, especially if the speaker wants to stress I.

Yes, absolutely. In fact, that is often the more natural version.

Both are correct:

• Myślę tak samo.
• Ja myślę tak samo.

The version without ja is usually more neutral. The version with ja adds emphasis, contrast, or clarity.

Yes. Polish word order is flexible, though different orders can change the emphasis.

Possible versions include:

• Ja myślę tak samo.
• Myślę tak samo.
• Tak samo myślę.
• Ja tak samo myślę.

The most neutral choices are usually:

• Myślę tak samo.
• Ja myślę tak samo.

If tak samo comes first, it may sound more emphatic, as if stressing in the same way.

Yes, it is natural and correct.

That said, in everyday conversation, Polish speakers may also choose shorter or more idiomatic ways to agree, such as:

• Też tak myślę. = I think so too.
• Zgadzam się. = I agree.
• Mam tak samo. = I’m the same / I feel the same way (more informal, context-dependent)

So Ja myślę tak samo is perfectly fine, but depending on context, another phrase may sound even more natural.

Often yes, but Polish has more than one verb that can match English think.

Two common ones are:

• myśleć = to think
• uważać = to think, to believe, to consider

For opinions, Polish speakers often use both:

• Myślę, że to dobry pomysł. = I think that’s a good idea.
• Uważam, że to dobry pomysł. = I think / I believe that’s a good idea.

In Ja myślę tak samo, myśleć works very naturally because it means to think in the same way as someone else.

Polish stress usually falls on the second-to-last syllable of each word.

So:

• ja → one syllable
• myślę → stress on myśl
• tak → one syllable
• samo → stress on sa

So the sentence is pronounced roughly like:

• ja MYŚ-lę tak SA-mo

In actual speech, the main sentence emphasis will depend on what the speaker wants to stress:

• JA myślę tak samo → stressing I
• Ja myślę TAK SAMO → stressing agreement / sameness