My usual partner.'
( ( ( My ( usual partner ) ) . ) ' )
(ROOT (S (VP (VB My) (NP (JJ usual) (NN partner))) (. .) ('' ')))
This is my partner I use very seldom.
( This ( ( is ( ( my partner ) ( I ( use ( very seldom ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (NP (PRP$ my) (NN partner)) (SBAR (S (NP (PRP I)) (VP (VBP use) (ADVP (RB very) (RB seldom))))))) (. .)))