Examples:
| Example | Instruction stream (clickable) | Notes |
|---|---|---|
| (5a) What did Mary buy? (5b) *What Mary bought? |
[what:n, q, buy, 'v*', [mary, d], 'Tpast', c_Q] | (5a) T to matrix C => do-support. (5b) Mary to edge C blocked (FI: exclamatory). |
| (5c) *Who did buy the book? (5d) Who bought the book? |
[book, the, buy, 'v*', [who, q], 'Tpast', c_Q] | No do-support triggered. (5c) ruled out by economy. |
| (23) What will Mary buy? | [what:n, q, buy, 'v*', [mary, d], will, 'T', c_Q] | Auxilary will raises to edge of C. |
| (24) What did John say that Mary will buy? | [what:n, q, buy, 'v*', [mary, d], will, 'T', c_eQ, say, v_unerg, [john, d], 'Tpast', c_Q] | Two derivations: (24) T to C realized as that. Or that can be omitted. c_eQ hosts wh-movement only. |
| (28a) Who did John say will buy the book? (28b) *Who did John say that will buy the book? |
[book, the, buy, 'v*', [who, q], will, 'T', c_eQ, say, v_unerg, [john, d], 'Tpast', c_Q] | That-trace effect. (28b) ruled out by economy. |
| (31) Mary thinks that Sue will buy the book
(33) Mary thinks Sue will buy the book |
[book, the, buy, 'v*', [sue, d], will, 'T', c_e, think, v_unerg, [mary, d], 'T', c] | Two derivations: (31) T to embedded C (c_e) realized as that. (33) c_e attracts subject Sue |
| (43a) *What a silly book did Mary buy! (43b) What a silly book Mary bought! |
[book, silly, a, what:d, q, buy, 'v*', [mary, d], 'Tpast', c_Q] | (43a) T to C blocked by CI: exclamative. (43b) Mary in edge of C. |
| (47a) Bill asked what Mary bought (47b) *Bill asked what did Mary buy (47c) *Bill asked what that Mary bought |
[what:n, q, buy, 'v*', [mary, d], 'Tpast', c_Qe, ask, v_unerg, [bill, d], 'Tpast', c] | Interrogative embedded C does not support T displacement. Note: same parse derived twice. |
| Extra test cases | ||
| Who was John meeting? | [who, q, meet, 'v*', [john, d], prog, 'v~', 'Tpast', c_Q] | Object wh-movement. Auxiliary be pied-piping. |
| Who was meeting John? | [john, d, meet, 'v*', [who, q], prog, 'v~', 'Tpast', c_Q] | Subject wh-movement. Auxiliary be pied-piping. |
| *Who do you think that saw John?
Who do you think saw John? |
[john, d, see, 'v*', [who, q], 'Tpast', c_eQ, think, 'v_unerg', [you, d], 'T', c_Q] | That-trace effect.
Economy: no T to C. |
| Who do you think that John saw?
Who do you think John saw? |
[who, q, see, 'v*', [john, d], 'Tpast', c_eQ, think, 'v_unerg', [you, d], 'T', c_Q] | Two derivations. No that-trace effect with object. |
| Stream: | [[who!D],[q!case!N!scope],[meet],[v*!phi],[[john!D],[d!case!N]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | |
| SO: | [] |
| Stream: | [[q!case!N!scope],[meet],[v*!phi],[[john!D],[d!case!N]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | |
| SO: | [who!D] |
| Stream: | [[meet],[v*!phi],[[john!D],[d!case!N]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | |
| SO: | [q!case!scope[q!scope][who]] |
| Stream: | [[v*!phi],[[john!D],[d!case!N]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [q!case!scope[q!scope][who]] |
| SO: | [meet[meet][q!case!scope[q!scope][who]]] |
| Stream: | [[[john!D],[d!case!N]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [q!scope[q!scope][who]] |
| SO: | [v*[v*][meet[meet][q!scope[q!scope][who]]]] |
| Stream: | [[john!D],[d!case!N]] |
| Stack (⥥): | |
| SO: | [] |
| Stream: | [[d!case!N]] |
| Stack (⥥): | |
| SO: | [john!D] |
| Stream: | [] |
| Stack (⥥): | |
| SO: | [d!case[d][john]] |
| Stream: | [[d!case[d][john]],[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [q!scope[q!scope][who]] |
| SO: | [v*[v*][meet[meet][q!scope[q!scope][who]]]] |
| Stream: | [[prog],[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [d!case[d][john]] [q!scope[q!scope][who]] |
| SO: | [v*[d!case[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]] |
| Stream: | [[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [d!case[d][john]] [q!scope[q!scope][who]] |
| SO: | [prog[prog][v*[d!case[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]] |
| Stream: | [[v~],[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [d!case[d][john]] [q!scope[q!scope][who]] |
| SO: | [prog[d!case[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]] |
| Stream: | [[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [d!case[d][john]] [q!scope[q!scope][who]] |
| SO: | [v~[v~][prog[d!case[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]]] |
| Stream: | [[Tpast!phi!v],[cQ!wh!T]] |
| Stack (⥥): | [d!case[d][john]] [q!scope[q!scope][who]] |
| SO: | [v~[d!case[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]]]] |
| Stream: | [[cQ!wh!T]] |
| Stack (⥥): | [d[d][john]] [q!scope[q!scope][who]] |
| SO: | [Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]]]]]] |
| Stream: | [[cQ!wh!T]] |
| Stack (⥥): | [d[d][john]] [q!scope[q!scope][who]] |
| SO: | [Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]]]]]]] |
| Stream: | [] |
| Stack (⥥): | [d[d][john]] [q[q][who]] |
| SO: | [cQ[q[q][who]][cQ[d[d][john]][cQ[cQ][Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q[q][who]]]]]]]]]]]]]]] |
| Stream: | [] |
| Stack (⥥): | b [d[d][john]] [q[q][who]] |
| SO: | [cQ[q[q][who]][cQ[d[d][john]][cQ[cQ][Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q[q][who]]]]]]]]]]]]]]] |
| Stream: | [[cQ!wh!T]] |
| Stack (⥥): | [d[d][john]] [q!scope[q!scope][who]] |
| SO: | [Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q!scope[q!scope][who]]]]]]]]]]]] |
| Stream: | [] |
| Stack (⥥): | [d[d][john]] [q[q][who]] |
| SO: | [cQ[q[q][who]][cQ[Tpast][cQ[v~][cQ[cQ][Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q[q][who]]]]]]]]]]]]]]]] |
| Stream: | [] |
| Stack (⥥): | b [d[d][john]] [q[q][who]] |
| SO: | [cQ[q[q][who]][cQ[Tpast][cQ[v~][cQ[cQ][Tpast[d[d][john]][Tpast[v~][Tpast[Tpast][v~[d[d][john]][v~[v~][prog[d[d][john]][prog[prog][v*[d[d][john]][v*[v*][meet[meet][q[q][who]]]]]]]]]]]]]]]] |
| Step: | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Stack depth: | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 3 |