TABLE 2.

Counts of clause chain-related verb forms produced by parents.

Speaker	Child’s age (mos.)	Total utterances	Total verbs	Total medial verbs	DS medial verbs	Cont. aspect	Inf. Impfv. aspect
TO mother	25	491	595	99	31	12	2
TO mother	26	584	530	87	9	19	1
TO mother	27	697	737	132	24	7	1
TO mother	28	487	538	97	23	24	0
TO mother	29	566	721	165	42	36	0
TO mother	30	539	442	73	12	18	0
TO mother	31	562	656	155	34	23	1
TO mother	32	568	460	80	14	23	0
TO mother	33	340	311	70	12	23	0
TO mother	34	548	527	118	42	28	4
TO mother	35	240	299	63	18	15	2
TO mother	36	183	335	96	20	1	1
TO mother	37	43	38	11	4	1	1
TO mother	38	661	940	217	86	10	1
TO mother	39	–	–	–	–	–	–
TO father	25	183	215	41	12	4	0
TO father	26	–	–	–	–	–	–
TO father	27	–	–	–	–	–	–
TO father	28	411	548	132	25	25	1
TO father	29	–	–	–	–	–	–
TO father	30	104	67	7	0	0	0
TO father	31	–	–	–	–	–	–
TO father	32	1	0	0	0	0
TO father	33	225	198	36	5	5	1
TO father	34	–	–	–	–	–	–
TO father	35	–	–	–	–	–	–
TO father	36	374	466	154	49	12	1
TO father	37	558	830	322	88	31	3
TO father	38	–	–	–	–	–	–
TO father	39	623	911	281	102	5	2
Niumen mother	34	177	260	76	22	5	0
Niumen mother	35	990	1185	284	46	120	4
Niumen mother	36	776	1352	309	66	68	5
Niumen mother	37	901	1245	296	77	89	6
Niumen mother	38	722	920	261	40	79	5
Niumen mother	39	569	589	175	27	53	3