As with Analytical Language Processors (ALPs), many GLPs will develop through the stages of natural language acquisition until they are able to speak in complete grammatically correct sentences and express complex ideas.
There will be a proportion of GLPs that need extra support to develop their language and move through the stages of natural language acquisition and some may not move through all the Stages and may become communicators using language structures from earlier stages. These individuals can still be supported to communicate a range of different ideas and feelings.
Some individuals who are GLPs may not be able to develop spoken language due to difficulties with the motor aspect of speech. They can be supported to develop their communication using AAC (Augmentative and Alternative Communication), e.g. symbols, signs, voice output aids. The GLP will still move through the same stages of language acquisition but language will be expressed using their AAC method of communication.