Sorry but that's how it is.
( Sorry ( but ( ( that ( 's ( how ( it is ) ) ) ) . ) ) )
(ROOT (FRAG (ADVP (RB Sorry)) (SBAR (CC but) (WHNP (WDT that)) (S (VP (VBZ 's) (SBAR (WHADVP (WRB how)) (S (NP (PRP it)) (VP (VBZ is)))))) (. .))))
While one is apologetic about it, there is nothing that can be done.
( ( While ( one ( is ( apologetic ( about it ) ) ) ) ) ( , ( there ( ( is ( nothing ( that ( can ( be done ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN While) (S (NP (PRP one)) (VP (VBZ is) (ADJP (JJ apologetic) (PP (IN about) (NP (PRP it))))))) (, ,) (NP (EX there)) (VP (VBZ is) (NP (NP (NN nothing)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN done)))))))) (. .)))