掘立 ほったて はしら建物 たてものじゃありません
hottatewa shira tatemonojārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 掘立柱建物

1. It is not a pillar-and-post building.; It is not a simple/rudimentary structure.

Negative
Polite
Terminal Form
Architecture