SN4 ""

No	Pattern	Freq
31	[was/were] [adv] when	170
32	it [adv] when	165
33	it [adv] when	165
34	was [adv] when	145
35	[not/n't] [adv] when	135
36	not [adv] when	135
37	[is] [adv] when	127
38	do [adv] when	114
39	not [adv] when	112
40	more [adv] when	106
41	more [adv] when	106
42	[be] [adv] when	106
43	be [adv] when	106
44	go [adv] when	103
45	so [adv] when	98
46	so [adv] when	98
47	[subord] [adv] when	96
48	at [adv] when	91
49	at [adv] when	91
50	[that] [adv] when	89
51	that [adv] when	89
52	that [adv] when	89
53	[noun prp] [adv] when	89
54	month [adv] when	79
55	[unc] [adv] when	76
56	[no cls] [adv] when	75
57	up [adv] when	74
58	up [adv] when	74
59	months [adv] when	71
60	or [adv] when	69