سار — walk

سَارَ / يَسِيرُ is a formal-MSA verb meaning “walk, move, proceed,” and, with an abstract subject, “progress or develop.” It is Form I from root س-ي-ر and belongs to the hollow-yāʾ class: the middle radical appears as a long vowel in سَارَ، يَسِيرُ, but that vowel disappears in forms such as سِرْتُ، لَمْ يَسِرْ، سِرْ.

English walk names mainly a manner of movement. سار is broader: a person may walk, a vehicle or procession may move, negotiations may proceed, and an institution may follow a policy. That range makes the verb valuable in news and formal prose, but it also means that English prepositions cannot simply be copied.

For the contrasting stationary posture and its location phrases, see جلس — sit.

Principal parts and lexical profile

The most useful bundle is سَارَ — يَسِيرُ — سِرْ — سَيْرًا. The active participle سائر is morphologically regular for a hollow verb, but context matters: besides “moving/proceeding,” سائر can mean “the rest of” or, in some fixed uses, “all the other.” Do not assume that every occurrence is a form of the motion sense.

The hollow-yāʾ alternation

The long ā appears in the citation form and the common third-person forms سَارَ، سَارَتْ، سَارَا، سَارُوا. It contracts to i with the mobile-t endings, ـنا, and feminine-plural ـنَ: سِرْتُ، سِرْتَ، سِرْنَا، سِرْنَ. Most imperfect forms have long ī, including the singular indicative and subjunctive, but the singular jussive shortens to يَسِرْ. Feminine-plural forms also use the short stem—هُنَّ يَسِرْنَ، أَنْتُنَّ تَسِرْنَ، سِرْنَ—because their ـنَ suffix begins with a consonant. The masculine-singular imperative is built from the shortened jussive stem.

The five verbs keep the stem vowel and mark subjunctive or jussive by deleting nūn: هم يسيرون، لن يسيروا، لم يسيروا. The short stem appears in singular jussives such as لم يسرْ and in feminine-plural forms such as هن يسرن; it does not appear in every jussive of a hollow verb.

Ranked senses

1. Walk or move along

With a human subject, سار often means “walk” or the broader “go/move.” A vehicle, procession, or traffic can also يسير, so the verb itself does not always encode movement on foot. If the manner matters, add it: سار على قدميه “went on foot,” سار ببطء “moved slowly.”

2. Proceed on a route or toward an endpoint

Use في for movement within or along a space, على for a road, route, line, or guiding course, and إلى / نحو for a destination or direction. The categories overlap because one journey can name both its route and endpoint, but each preposition contributes its own perspective.

3. Progress or develop

With an abstract subject, سار evaluates how a process unfolds: سار العمل جيدا “the work went well,” سارت المفاوضات ببطء “the negotiations progressed slowly,” سار كل شيء وفق الخطة “everything went according to plan.” This sense is very common in reports and updates.

4. Follow a path, policy, or example

سار على extends naturally from a physical course to a method, policy, tradition, or someone’s example. The complement is the course followed, not the endpoint reached.

Government and high-frequency collocations

The passive occurs chiefly with بـ: سِيرَ به إلى المكان “he was taken to the place.” Because basic سار is intransitive, English “the road was walked” does not license an ordinary bare personal passive. In most contexts, rewrite with an active subject or an impersonal expression.

Common Mistakes

Keeping the long vowel before a consonant-initial suffix

Retaining ي in the singular jussive

Using an English-style direct destination

Confusing the route with the endpoint

Key Takeaways

• سار is hollow-yāʾ Form I: سار، يسير، سرت، لم يسر، سر.
• Its core range is broader than English walk: people walk, vehicles move, and plans or negotiations proceed.
• Use إلى / نحو for an endpoint, في / على for a route or adopted course, and وفق for conformity.
• Basic سار is intransitive; its formal passive normally appears in the governed frame سير به.
• Store the collocations سار على نهج، سار وفق الخطة، سار على قدميه as complete units.