SN4 ""

No	Pattern	Freq
1	[noun] is [that] it [be]	605
2	[noun sg] is [that] it [be]	538
3	[verb] is [that] it [be]	77
4	[adj] is [that] it [be]	70
5	[pron] is [that] it [be]	45
6	[noun pl] is [that] it [be]	40
7	[noun prp] is [that] it [be]	25
8	[pers pn] is [that] it [be]	24
9	[det] is [that] it [be]	24
10	[adv] is [that] it [be]	23
11	[adj] is [that] it [be]	23
12	[adv] is [that] it [be]	23
13	point is [that] it [be]	21
14	problem is [that] it [be]	19
15	[to-vb] is [that] it [be]	19
16	problem is [that] it [be]	18
17	point is [that] it [be]	18
18	[vb infin] is [that] it [be]	17
19	this is [that] it [be]	16
20	view is [that] it [be]	16
21	this is [that] it [be]	16
22	it is [that] it [be]	16
23	say is [that] it [be]	16
24	view is [that] it [be]	16
25	it is [that] it [be]	16
26	answer is [that] it [be]	16
27	answer is [that] it [be]	16
28	[vb pp] is [that] it [be]	15
29	thing is [that] it [be]	13
30	thing is [that] it [be]	13