SN4 ""

No	Pattern	Freq
1	[pers pn] is [subord]	628
2	it is [subord]	559
3	it is [subord]	557
4	[pron] is because	361
5	[pron] is as	229
6	there is [subord]	73
7	[ex0] is [subord]	73
8	there is [subord]	73
9	[pron] is if	69
10	which is [subord]	40
11	which is [subord]	40
12	[Wh det] is [subord]	40
13	[pron] is whether	33
14	he is [subord]	26
15	he is [subord]	24
16	[pron] is cos	22
17	[indef pn] is [subord]	20
18	one is [subord]	12
19	she is [subord]	12
20	one is [subord]	12
21	she is [subord]	11
22	me is [subord]	10
23	i is [subord]	10
24	[pron] is when	9
25	[pron] is before	9
26	you is [subord]	7
27	you is [subord]	7
28	we is [subord]	6
29	us is [subord]	6
30	[pron] is since	6