pronominal, vii, xiii, xx, 1, 3, 7–9, 16, 21, 29, 51–52, 56–57, 67, 70–71, 75, 122, 127, 129–137, 139–141, 143, 145, 147, 149–151, 153, 155–158, 160–162, 166–169, 171–176, 178, 181, 183–184, 186–187, 189–190, 192, 194–196, 198, 200–201, 203–205, 207, 211–212, 217, 219, 222, 224–228, 235–236

reference to addressee, 1, 9, 155

reference to nonparticipant, 1, 9, 155

reference to self, 1, 9, 155

pronoun reversal, 156, 164–167, 168–169, 171–172, 203, 225

pronouns, xx–xxi, 6–9, 21–22, 29, 38, 47, 54, 56, 70, 77, 86–87, 103, 106, 109, 129–132, 149–150, 155, 172, 174–175, 177–178, 180–181, 183

first-person pronoun, 147, 170

second-person pronouns, xx, 19, 164, 164, 168–174, 177, 209, 209, 226–227, 238

third-person pronouns, 164, 167, 169, 171, 177–179, 184, 193, 201, 203, 222

reference, iv, vii, xiv, xx, xxiv, 1, 7–9, 12, 29, 38, 52, 56, 67, 75, 92, 102, 127–139, 141–147, 149–153, 155–156, 158–159, 161–164, 166–167, 169, 174–175, 181, 184, 190, 192, 194, 196–198, 200–202, 205, 209–213, 219, 225–228, 235–236, 238–239

self–referential expressions, self–reference, 8, 29, 56, 67, 92, 130, 132–134, 136, 143–146, 149–151, 164, 167, 175, 192, 196–198, 202, 225, 236, 239

semantic, xx, 7, 9, 21, 38, 42, 68, 82, 100–101, 129, 131, 155–156, 158–159, 161, 163–166, 173, 186–187, 191, 194, 201, 204–205, 212, 217–218, 222, 225–226

separate development hypothesis, differentiation hypothesis, 5–6, 12, 24, 38, 42–44, 46, 77, 86, 128, 231–233

separation, xxi, 5, 9, 15–16, 18–19, 38, 43, 47, 77, 155, 232, 235, 241

simultaneous acquisition, 4, 11–12, 50, 231

socialization, 26, 151, 243

speech roles, xx, 7, 129, 156, 158–164, 168, 177–178, 207

stronger language, 29–32, 37, 86, 128, 131, 148, 150, 157, 158, 227, 234–235, 238–239

subject realisation, 1, 9, 33, 57, 77–78, 81, 85–86, 116, 118–119, 123, 232–233

a pro-drop language, 83, 86, 118, 123, 182

null subjects, 82–84, 86, 88, 118, 177, 233

successive acquisition, 4

syntactic development, 1, 7, 9, 42, 45, 71, 77–81, 83, 85–87, 89, 91, 97, 99, 101, 144, 232, 234, 237

syntactic patterns, 94–96, 97–99, 110–111, 114–116, 118–119