ABSTRACT
The Igbo language is one of the languages of the Benue Congo family spoken predominantly in the southeast part of Nigeria. Although, some works have been done on the inflectional and extensional suffixes in the language but no detailed study so far has been done on the prime suffixes in the language. It is on this premise that this paper attempts to examine the functional analysis of the prime suffixes in Igbo morpho-syntax with the aim of identifying primary suffixes that exist in the language, classifying them based on the functions they perform in the verb root where they are attached, explore their morphological structures, syntactic patterns, and semantic behaviours in the constructions. The X-bar theory is the theoretical framework for the study. The data for the study were obtained through the recording of the naturally occurring speeches of the native speakers during discourses, and conversations. The findings reveal that the prime suffixes are overtly morphologically marked on the verbs of the language. They have [V], [CV], [CVCV] or [CVCVCV] syllable structures and can be monosyllabic, disyllabic or trisyllabic in nature. They can perform the following semantic functions on the verbs where they are attached in the syntactic structures respectively: imperative, negative, past tense, progressive aspect, preposition as well as adverbial function. Some vowels of the verb roots do harmonize with the vowels of the prime suffixes while some do not. Again, the tones of these suffixes do change when they are mapped unto the verb roots. We, therefore, recommend that more research works be done in the verbs of the language to enhance its growth and development by applying some of the linguistic theories in order to find out how they operate in the language.