SN4 ""

No	Pattern	Freq
31	[indef pn] is [being]	57
32	who is [being]	57
33	who is [being]	57
34	[num] is [being]	52
35	[n mass] is [being]	49
36	[adv] is [being]	47
37	[adj] is [being]	45
38	[adv] is [being]	42
39	that is [being]	41
40	that is [being]	41
41	progress is [being]	40
42	progress is [being]	40
43	project is [being]	38
44	project is [being]	36
45	research is [being]	36
46	she is [being]	36
47	system is [being]	36
48	research is [being]	36
49	she is [being]	35
50	system is [being]	34
51	money is [being]	33
52	money is [being]	33
53	report is [being]	28
54	attention is [being]	27
55	attention is [being]	27
56	report is [being]	27
57	[vb base] is [being]	26
58	or is [being]	25
59	or is [being]	25
60	service is [being]	25