SN4 ""

No	Pattern	Freq
1	[pron] was [adv] difficult	309
2	[pers pn] was [adv] difficult	293
3	it was [adv] difficult	278
4	it was [adv] difficult	278
5	[noun] was [adv] difficult	108
6	[noun sg] was [adv] difficult	88
7	[adj] was [adv] difficult	36
8	[det] was [adv] difficult	31
9	that was [adv] difficult	17
10	that was [adv] difficult	17
11	this was [adv] difficult	13
12	this was [adv] difficult	13
13	[noun prp] was [adv] difficult	12
14	[Wh det] was [adv] difficult	10
15	which was [adv] difficult	8
16	[noun pl] was [adv] difficult	8
17	he was [adv] difficult	8
18	which was [adv] difficult	8
19	[adv] was [adv] difficult	7
20	[adv] was [adv] difficult	7
21	he was [adv] difficult	6
22	[conj] was [adv] difficult	5
23	she was [adv] difficult	5
24	she was [adv] difficult	5
25	was [adv] [adv] difficult	73
26	was [art] [adv] difficult	50
27	was [art] [adv] difficult	50
28	was [adv] [adv] difficult	39
29	was [verb] [adv] difficult	38
30	was a [adv] difficult	34