Breakdown of يمشي السائح في خط مستقيم.
الal
the
فيfî
in / about, regarding
مشىmashâ
to walk / to go, to move along (of a vehicle)
سائحsâ'ihun
tourist
خطkhatt
line
مستقيمmustaqîm
straight
Questions & Answers about يمشي السائح في خط مستقيم.
Why does the present tense verb يمشي end in a long "ī" vowel instead of the usual short "u" sound?
يمشي (he walks) is a "defective" verb, meaning its root ends in a weak letter—in this case, ي (yaa). Regular present-tense verbs for "he" end in a short "u" vowel (like يكتبُ yaktubu). But to make pronunciation smoother, verbs ending in ي drop that short "u" and just hold the long "ī" sound (yamshī).
If I wanted to change this to "they walk," does the weak letter ي stay in the verb?
No, it drops out completely! For regular verbs, you add ـون (-ūna) to the end for "they". But with defective verbs like يمشي, the weak ي is removed before adding the plural ending, making it يمشون (yamshūna) instead of "yamshiyūna".
Why doesn't the word for straight (مستقيم) have الـ (al-) at the beginning?
In Arabic, adjectives must exactly match the noun they describe. Because خط (a line) is indefinite (it has no الـ), the adjective مستقيم (straight) must also be indefinite. If the sentence meant "in the straight line," both words would need it: في الخط المستقيم.
If I am reading this sentence aloud with full case endings, how do the last two words sound?
They both end with an "-in" sound. The preposition في (in) forces the following noun خط into the genitive case, making it خطٍ (khaṭṭin). Because مستقيم is an adjective describing that noun, it copies the exact same case ending, becoming مستقيمٍ (mustaqīmin).
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