SN4 ""

No	Pattern	Freq
31	[pron] [vb past] but a	12
32	[pron] [vb base] but a	11
33	[pron] [adv] but a	11
34	[pron] [vb -s] but a	10
35	[pron] [noun pl] but a	7
36	[pron] [adj] but a	7
37	[pron] [am/are] but a	6
38	[pron] have but a	5
39	[pron] all but a	5
40	[pron] else but a	5
41	[pron] all but a	5
42	[pron] else but a	5
43	[pron] [det] but a	5
44	[pron] but [prep] a	27
45	[pron] but [prep] a	27
46	[pron] but [verb] a	17
47	[pron] but [adv] a	10
48	[pron] but as a	6
49	[pron] but as a	6
50	[pron] but not a	5
51	[pron] but for a	5
52	[pron] but for a	5
53	[pron] but [not/n't] a	5
54	[pron] but [to-vb] a	5
55	[pron] but [adv] a	5
56	[pron] but not a	5
57	[pron] but [vb infin] a	5
58	[pron] but a [noun]	49
59	[pron] but a [noun sg]	45
60	[pron] but a [adj]	37