Холбуу туһаайыы - reciprocal

[varie]

бар + ыс + ан = барсан
суруй + ус + ан = суруйсан
<v><recp><converb_past>

[jonorthwash]

A couple questions that would help out:

1. Frequency/categorisation: Can we assume that every verb gets this? Or every transitive verb? Or is it only some small subset of verbs? Or something in between?
2. Morphotactics: What are the ways this can combine with passive and causative? I.e., when there's more than one, what are the possible orders?
3. Morphophonology: Could you provide some other forms of these verbs that have this suffix? A few with and without the extra vowel would be useful.
4. Naming: In other Turkic languages, this suffix is used for reciprocal and cooperative, among other things (Nedjalkov has some nice work on the range of semantics involved). We normally just use the tag <coop>. Does Sakha have a similar range of uses?

[varie]

1. I think that every verb gets that.
2. суруйтарыс: тар-causative (the transducer analyses it as imp) ыс-reciprocal (coop ⋅ imp in the transducer).
3. I will answer to this later.
4. I am not sure. In the Gavril Torotoev's table there is no anything called cooperative. That form is called reciprocal in the table.