Go: ṛuḥ "go!", yeţṛuḥ(u) "he goes", iṛuḥ "he went". This verb, obviously, is borrowed from colloquial Arabic ṛuḥ (like its Siwi counterpart ṛuḥ, iteṛṛaḥ, iṛaḥ); it is quite commonly used, but there is a more purist alternative:
Go: ddu "go!", iṯeddu "he goes", yedda "he went". This verb is also used with the same meaning in Tashelhiyt; it's probably related to Tamasheq idaw, itidaw, ǎddew "accompany, go with". Example: Tom yebɣa ad yeddu ɣer Japun.
Come: as "come!", yeţţas "he comes", yusa "he came". This nearly pan-Berber verb is usually combined with the particle -d "hither (towards here)"; in Siwi, that particle has fused with the stem, yielding héd, itased, yused. Example: Yusa-d ɣer Japun asmi ay yella d agrud.
Pass: ɛeddi "pass!", yeţɛeddi / yeţɛedday "he passes", iɛedda "he passed". This verb, widespread in both Berber and dialectal Arabic, is from Arabic عدا "he passed", as the generally un-Berber ɛ betrays. Siwi retains fel, iteffal, yefla "pass / depart"; the rarer cognate verb (fel, yeffal, ifel) in Kabyle means "go over". Example: ɛeddaɣ fell-as deg wezniq.
Arrive: aweḍ "arrive!", yeţţaweḍ "he arrives", yebbʷeḍ (yuweḍ) "he arrived". Siwi instead uses an Arabic loan mraq, imerraq, yemraq; but it retains a causative of the original root, siweṭ. Example: aql-ik tuwḍeḍ-d zik.
Go up: ali "go up!", yeţţali "he goes up", yuli "he went up". The similarity to Arabic على is probably just a coincidence, since the Tashelhiyt equivalent is eɣli. Siwi uses an equally Berber but unrelated form wen, itewwan, yuna, also found in Tashelhiyt (awen); Kabyle retains a causative of this root, ssiwen "go up (eg road)", and a commoner noun, asawen "(up) a rising slope". Example: La ttalyeɣ isunan.
Go down: aḏer "go down!", yeţţaḏer "he goes down", yuḏer "he went down". Siwi again uses an equally Berber but unrelated form ggez, iteggez, yeggez, also found in Tashelhiyt (ggʷez). Example: La ttadreɣ isunan.
Go in: ḵcem "go in!", iḵeččem "he goes in", yeḵcem "he went in". The same verb is used in Tashelhiyt; Siwi uses a cognate form kim, itekkam, ikim. Example: Ttxil-k, kcem-d.
Go out: ffeɣ "go out!", iṯeffeɣ "he goes out", yeffeɣ "he went out". The same verb is used in Tashelhiyt. and (with a trivial regular vowel change) in Siwi f̣f̣eɣ, itef̣f̣aɣ, yef̣f̣aɣ. Example: Zemreɣ ad ffɣeɣ ad urareɣ?
Or, in a form more suitable for quick self-testing:
Comments and suggestions welcome, especially if you speak Kabyle!