defective verb
[/dɪˈfɛktɪv vɜːrb/]
nounpl: defective verbs
verbo defectivo
1. A verb that lacks certain inflectional forms or conjugations that are standard for regular verbs in a language; a verb that cannot be conjugated in all tenses, moods, or persons.
The English verb 'must' is a defective verb because it has no infinitive form or past tense.
O verbo 'dever' em português é um verbo defectivo porque não possui todas as formas conjugacionais.
2. A verb that is incomplete in its paradigm, missing certain grammatical forms that would normally be expected.
Modal verbs like 'can', 'shall', and 'may' are defective verbs in English grammar.
Verbos modais como 'poder', 'dever' e 'estar para' são verbos defectivos porque carecem de certas formas conjugacionais.
This is primarily a technical term used in linguistics and grammar instruction. In Brazil and Portugal, the term 'verbo defectivo' is standard in educational curricula when teaching formal grammar. Understanding defective verbs is important for language learners as these verbs have special conjugation rules that differ from regular verbs.
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