I think . The word schreibe could come from the Latin word scribe. Which mean write.
The Latin scribere ('to write') gave rise to the Italian scrivere, the Dutch schrijven, the German schreiben, the Danish skrive, the Icelandic skrifa, the Norwegian skrive/skriva, the Swedish skriva, the French écrire, the Irish scríobh, the Portuguese escrever, the Spanish escribir, the Romanian scrie, the Welsh ysgrifennu, and the Esperanto skribi, among many others.
English words descended from the Latin root scribere include:
scribble (late Middle English: from medieval Latin scribillare, diminutive of Latin scribere)
describe/description/indescribable (describe — late Middle English: from Latin describere, from de- ‘down’ + scribere ‘write’; description — late Middle English: via Old French from Latin descriptio(n-), from describere ‘write down’; indescribable — 1726, from in- 'not, opposite of' + describable)
manuscript (late 16th century: from medieval Latin manuscriptus, from manu ‘by hand’ + scriptus ‘written’ [past participle of scribere])
subscribe(r)/subscription (subscribe — early 15c., 'to sign at the bottom of a document,' from Latin subscribere 'write, write underneath, sign one's name; register,' also figuratively 'assent, agree to, approve,' from sub 'underneath' + scribere 'write'; subscription — late Middle English: from Latin subscriptio(n-), from subscribere ‘write below’)
scripture/scriptural (scripture — Middle English: from Latin scriptura ‘writings,’ from script- ‘written,’ from the verb scribere; scriptural — mid 17th century: from late Latin scripturalis, from Latin scriptura ‘writings’)
P.S. P.S. stands for the Latin post scriptum — post ('after, behind') + scrīptum ('text; something written')
I would like to know the answer to this question too. Thanks to anyone who can answer it.
First person singular, present tense of "schreiben" is "ich schreibe" (="I write" in English). First person singular, past tense would be "ich schrieb". "schribe" does not exist in German!