Můj telefon teď nejde, proto ti nemůžu zavolat.

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Breakdown of Můj telefon teď nejde, proto ti nemůžu zavolat.

• můj: my
• moci: can
• teď: now

Questions & Answers about Můj telefon teď nejde, proto ti nemůžu zavolat.

Why is it můj telefon and not moje telefon?

Because telefon is a masculine inanimate singular noun, and the possessive pronoun můj has to agree with it.

Here the forms are:

• můj = my, for masculine singular nouns
• moje / má = my, for feminine singular or neuter plural depending on form
• moji / mé etc. = other forms depending on case/number/style

So:

• můj telefon = my phone
• moje kniha = my book
• moje auto = my car

The pronoun changes form just like an adjective would.

What exactly does teď mean, and why is it placed there?

Teď means now / right now / at the moment.

In this sentence, it tells us that the problem is temporary or current:

• Můj telefon teď nejde = My phone isn’t working right now

Its position is natural here, after telefon, but Czech word order is fairly flexible. You could also hear:

• Teď můj telefon nejde
• Můj telefon nejde teď

But the original sentence sounds the most natural in ordinary speech.

Why does Czech use nejde here? Doesn’t jít mean to go?