2013- 5- 18
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#333
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أكـاديـمـي مـشـارك
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رد: هنا مراجعة مادة النحو و الصرف
ممكن شرح مبسط عن Internal change is a process that substitutes one non-morphemic segment for another. Sing (present) sang (past) Sink (present) sank (past) Drive (present) drove (past) Foot (singular) feet (plural) Goose ( singular) geese (plural) Verbs such as sing, sink, and drive form their past tense by changing the vowel (e.g., from i to a in the first two examples). The termABLAUTis often used for vowel alternation that mark grammatical contrast in this way. Ablaut can be distinguished from UMLAUT, which involves the fronting of a vowel under the influence of a front vowel in the following syllable. Historically, this is what is responsible for the use of feet and geese as plural forms of foot and goose.
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