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:$\langle$mode$\rangle =$ Comp.t:$\langle$select-mode$\rangle$ The lexical specifications of the Comps are shown below:

• $\epsilon$_C, Comp.t:$\langle$select-mode$\rangle =$ind/inf/ger/ppart
• that, Comp.t:$\langle$select-mode$\rangle =$ind
• for, Comp.t:$\langle$select-mode$\rangle =$inf

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

(169)0(169

(170)

the book Muriel likes (S.t:<mode> = ind)  (170)0(170

(171)

a book to like (S.t:<mode> = inf)  (171)0(171

(172)

the girl reading the book (S.t:<mode> = ger)  (172)0(172

(173)

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

For for:

(173)0(173

(174)

*the book for Muriel likes (S.t:<mode> = ind)  (174)0(174

(175)

a book for Mary to like (S.t:<mode> = inf)  (175)0(175

(176)

*the girl for reading the book (S.t:<mode> = ger)  (176)0(176

(177)

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

For that:

(177)0(177

(178)

the book that Muriel likes (S.t:<mode> = ind)  (178)0(178

(179)

*a book that (Muriel) to like (S.t:<mode> = inf)  (179)0(179

(180)

*the girl that reading the book (S.t:<mode> = ger)  (180)0(180

(181)

*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:$\langle$mode$\rangle =$ NP_w.t:$\langle$select-mode$\rangle$
NP_w.t:$\langle$select-mode$\rangle =$ind The examples that follow are intended to provide the rationale for the above setting of features.

(181)0(181

(182)

the boy whose mother chased the cat (S_r.t:$\langle$mode$\rangle =$ind)  (182)0(182

(183)

*the boy whose mother to chase the cat (S_r.t:$\langle$mode$\rangle =$inf)  (183)0(183

(184)

*the boy whose mother eaten the cake (S_r.t:$\langle$mode$\rangle =$ppart)  (184)0(184

(185)

*the boy whose mother chasing the cat (S_r.t:$\langle$mode$\rangle =$ ger)  (185)0(185

(186)

the boy [whose mother]_i Bill believes $\epsilon$_i to chase the cat
(S_r.t: $\langle$mode$\rangle =$ind) 

The feature equations that appear in trees which have substitution of PP_w are:
S_r.t:$\langle$mode$\rangle =$ PP_w.t:$\langle$select-mode$\rangle$
PP_w.t:$\langle$mode$\rangle =$ind/inf ^14.5 Examples that justify the above feature setting follow.

(186)0(186

(187)

the person [by whom] this machine was invented (S_r.t:$\langle$mode$\rangle =$ind)  (187)0(187

(188)

a baker [in whom]_i PRO to trust $\epsilon$_i (S_r.t:$\langle$mode$\rangle =$ inf)  (188)0(188

(189)

*the fork [with which] (Geoffrey) eaten the pudding (S_r.t:$\langle$ mode$\rangle =$ppart)  (189)0(189

(190)

*the person [by whom] (this machine) inventing (S_r.t:$\langle$mode $\rangle =$ger)