Why familiar words disappear when you speak
You recognise a word when reading it, but it does not come to mind in conversation. Learn to turn passive vocabulary into active vocabulary.
From basic to sophisticated German

You recognise a word when reading it, but it does not come to mind in conversation. Learn to turn passive vocabulary into active vocabulary.
Knowing a word does not mean knowing how to use it naturally. Learn chunks: typical word combinations and whole sentence building blocks.
You can explain a rule, yet must still build the sentence in conversation. Practise patterns actively until they come automatically.
Errors do not disappear just because you speak a lot. With no feedback, they can become fixed. Learn to prevent fossilisation early.
People hear rhythm, stress, vowel length and melody as well as words. Learn how shadowing makes your real level audible.
Alone, you have time; in conversation, you do not. Learn to practise under real pressure, with enough speaking time and personal feedback.
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