How do you say "I should know" in German?

"I should know" in German is "Das ich wissen soll". This phrase is commonly used in Germany.

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How to Say ‘I should know’ in German

Q: What does "Das ich wissen soll" mean in English?

"Das ich wissen soll" means "I should know" in English. Usage tip: This sentence is not standard as written. Correct form: Das, was ich wissen soll. Also note: after das as 'that,' German often uses a comma in longer clauses.

Das ich wissen soll

dahs ikh VIS-sen zoll

[dahs ikh VIS-sen zoll]

💬 Usage Tip: This sentence is not standard as written. Correct form: Das, was ich wissen soll. Also note: after das as 'that,' German often uses a comma in longer clauses.

🇩🇪 In Germany: Great reminder that German sentence building can be very precise—small words can change the whole structure.

Phrase Breakdown

Das

[dahs]

that / this

Points to something specific; in standard German this phrase would usually be "dass" if it introduces a clause.

Example

Das ist alles, was ich wissen soll.

That is everything I am supposed to know.

Ich wissen soll

ikh VIS-sen zoll

I should know

Verb phrase with modal verb 'sollen'; the correct German word order would usually be 'ich wissen soll' only in a very specific structure, but here it means 'that I should know'.

Example

Ich soll das wissen.

I am supposed to know that.

Words in this phrase

ich

[ikh]

First-person singular pronoun; here lowercase because it appears inside the phrase.

Example

Was ich wissen muss, ist neu.

What I need to know is new.

wissen

[VIS-sen]

to know

Verb meaning to know information or facts.

Example

Ich will die Antwort wissen.

I want to know the answer.

soll

[zoll]

should / am supposed to

Modal verb showing what is expected or required.

Example

Das ist etwas, das ich wissen soll.

That is something I am supposed to know.

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