That would be an interesting day.
( That ( ( would ( be ( an ( interesting day ) ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (MD would) (VP (VB be) (NP (DT an) (JJ interesting) (NN day)))) (. .)))
That should make for a mundane day.
( That ( ( should ( make ( for ( a ( mundane day ) ) ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (MD should) (VP (VB make) (PP (IN for) (NP (DT a) (JJ mundane) (NN day))))) (. .)))