Complementizers and clauses

The co-occurrence constraints that exist between various Comps and the clause type of the clause they occur with are implemented through combinations of different clause types using the <mode> feature, the <select-mode> feature, and the <rel-pron> feature. Clauses are specified for the <mode> feature which indicates the clause type of that clause. Possible values for the <mode> feature are ind, inf, ppart, ger etc. Comps are lexically specified for a feature named <select-mode>. In addition, the <select-mode> feature of the Comp is equated with the <mode> feature of its complement S by the following equation:
S_r.t:mode Comp.t:select-mode The lexical specifications of the Comps are shown below:

• _C, Comp.t:select-modeind/inf/ger/ppart
• that, Comp.t:select-modeind
• for, Comp.t:select-modeinf

The following examples display the co-occurence constraints which the <select-mode> specifications assigned above implement. For _C:

(221)0(221

(222)

the book Muriel likes (S.t:<mode> = ind)  (222)0(222

(223)

a book to like (S.t:<mode> = inf)  (223)0(223

(224)

the girl reading the book (S.t:<mode> = ger)  (224)0(224

(225)

the book read by Muriel (S.t:<mode> = ppart) 

For for:

(225)0(225

(226)

*the book for Muriel likes (S.t:<mode> = ind)  (226)0(226

(227)

a book for Mary to like (S.t:<mode> = inf)  (227)0(227

(228)

*the girl for reading the book (S.t:<mode> = ger)  (228)0(228

(229)

*the book for read by Muriel (S.t:<mode> = ppart) 

For that:

(229)0(229

(230)

the book that Muriel likes (S.t:<mode> = ind)  (230)0(230

(231)

*a book that (Muriel) to like (S.t:<mode> = inf)  (231)0(231

(232)

*the girl that reading the book (S.t:<mode> = ger)  (232)0(232

(233)

*the book that read by Muriel (S.t:<mode> = ppart) 

Relative clause trees that have substitution of NP_w have the following feature equations:
S_r.t:mode NP_w.t:select-mode
NP_w.t:select-modeind The examples that follow are intended to provide the rationale for the above setting of features.

(233)0(233

(234)

the boy whose mother chased the cat (S_r.t:modeind)  (234)0(234

(235)

*the boy whose mother to chase the cat (S_r.t:modeinf)  (235)0(235

(236)

*the boy whose mother eaten the cake (S_r.t:modeppart)  (236)0(236

(237)

*the boy whose mother chasing the cat (S_r.t:mode ger)  (237)0(237

(238)

the boy [whose mother]_i Bill believes _i to chase the cat
(S_r.t: modeind) 

The feature equations that appear in trees which have substitution of PP_w are:
S_r.t:mode PP_w.t:select-mode
PP_w.t:modeind/inf ^15.5 Examples that justify the above feature setting follow.

(238)0(238

(239)

the person [by whom] this machine was invented (S_r.t:modeind)  (239)0(239

(240)

a baker [in whom]_i PRO to trust _i (S_r.t:mode inf)  (240)0(240

(241)

*the fork [with which] (Geoffrey) eaten the pudding (S_r.t: modeppart)  (241)0(241

(242)

*the person [by whom] (this machine) inventing (S_r.t:mode ger)