He had to try something.
( He ( ( had ( to ( try something ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD had) (S (VP (TO to) (VP (VB try) (NP (NN something)))))) (. .)))
The man had to try and do something. 
( ( The man ) ( ( had ( to ( ( ( try and ) do ) something ) ) ) . ) )
(ROOT (S (NP (DT The) (NN man)) (VP (VBD had) (S (VP (TO to) (VP (VB try) (CC and) (VB do) (NP (NN something)))))) (. .)))