I found this weird pattern in Seinundjé

Ordinary Seinundjé (e-acute) syntax, in present sentences, is SVO:
Árichesja ledhemla gámen.
Árichesja sees     aspen-tree.
Á. sees the aspen.

But when a tense particle or wh-item is added, the verb moves forward:

Ínu ledhemla Árichesja gámen.
PST sees     Árichesja aspen-tree.
Á. saw the aspen.

Héten ledhemla Árichesja?
What  sees     Árichesja?
What does Á. see?

Ínu ledhemla Árichesja héten?
PST sees     Árichesja what ?
What did Á. see?

Strangely, this movement is suppressed in subordinate clauses; instead, a form of |kím|,
the Sein. analogue to English |do|, is inserted, carrying the inflection:

Né sánte yá   kímla Árichesja ledhem gámen.
I  know  that does  Árichesja see    aspen-tree.
I know that Á. sees the aspen.

Né sánte yá   kímla ínu Árichesja ledhem gámen.
I  know  that does  PST Árichesja see    aspen-tree.
I know that Á. saw the aspen.

Né sánte yá   kímla ínu Árichesja ledhem héten.
I  know  that does  PST Árichesja see    what.
I know what Á. saw.

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Shreyas Sampat