Within child language acquisition research, there has been a fair amount of controversy regarding children's knowledge of the grammatical properties associated with verbal inflection (e.g., tense, agreement, and aspect). Some researchers have proposed that the child's early grammar is fundamentally different from the adult grammar, whereas others…

Examines how second-language learners compensate for their target language deficiency in communication using the One to One Principle of interlanguage communication. Results indicate that target language aspects not adhering to one-to-one mapping between semantic and surface elements are problematic to the learners and are seemingly acquired late.…