3.1. Agreement
LSC distinguishes the following types of agreement: person agreement, spatial agreement, and number agreement. Agreement can be marked by a modification of the verb or by an agreement auxiliary [LEXICON 3.2.2]. Verbal roots in LSC use different phonological parameters for agreement marking:
- Location
- Path movement
- Orientation of the hand
- Handshape
- Numeral incorporation
- Classifiers
Person agreement (first, second and third person) and spatial agreement are realized mainly by changes in the location, the path movement, and orientation of the hand or tip of the fingers. Number agreement, instead, is realized through changes in the form of the movement and changes in the handshape (double articulators, numeral incorporation or classifiers).
Though it is generally accepted that only a subset of verbs can be modified: agreement and spatial verbs [LEXICON 3.2.2], in LSC some plain verbs can also be modified in order to express agreement through the location of the sign [LEXICON 3.2.1].