Principal parts (verb): Difference between revisions
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The '''principal parts''' of an [[English irregular verbs|irregular verb]]<ref> Regular verbs' principal parts can themselves be deduced from just the basic (lemma) form.</ref> are those forms from which all other forms can be deduced by the application of certain rules. Take, for example, the English verbs ''look'' and ''write''. We know that the -s forms are ''looks'' and ''writes'', as only very irregular verbs have irregular -s forms (''is'' and ''has''). Similarly we know that the -ing forms are ''looking'' and ''writing'' (the latter with the mandatory removal of the final -e). But for the past tense forms, we need to know if we are dealing with regular verbs (''looked'' and ''writed'') or otherwise. The reality, of course, is that ''looked'' is indeed the regular past of ''look'', but that ''write'' is an irregular verb which does not have ''writed'' but ''wrote'' as its past form. Furthermore, we know that ''looked'' also functions as the past participle in the regular verb, but that we need to know | The '''principal parts''' of an [[English irregular verbs|irregular verb]]<ref> Regular verbs' principal parts can themselves be deduced from just the basic (lemma) form.</ref> are those forms from which all other forms can be deduced by the application of certain rules. Take, for example, the English verbs ''look'' and ''write''. We know that the -s forms are ''looks'' and ''writes'', as only very irregular verbs have irregular -s forms (''is'' and ''has''). Similarly we know that the -ing forms are ''looking'' and ''writing'' (the latter with the mandatory removal of the final -e). But for the past tense forms, we need to know if we are dealing with regular verbs (''looked'' and ''writed'') or otherwise. The reality, of course, is that ''looked'' is indeed the regular past of ''look'', but that ''write'' is an irregular verb which does not have ''writed'' but ''wrote'' as its past form. Furthermore, we know that ''looked'' also functions as the past participle in the regular verb, but that we need to know all three principal parts of ''write'' in order to get its past participle, ''written''. So now we have our entire irregular verb: ''write, wrote, written''. | ||
==References== | ==References== | ||
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Revision as of 16:51, 8 January 2010
The principal parts of an irregular verb[1] are those forms from which all other forms can be deduced by the application of certain rules. Take, for example, the English verbs look and write. We know that the -s forms are looks and writes, as only very irregular verbs have irregular -s forms (is and has). Similarly we know that the -ing forms are looking and writing (the latter with the mandatory removal of the final -e). But for the past tense forms, we need to know if we are dealing with regular verbs (looked and writed) or otherwise. The reality, of course, is that looked is indeed the regular past of look, but that write is an irregular verb which does not have writed but wrote as its past form. Furthermore, we know that looked also functions as the past participle in the regular verb, but that we need to know all three principal parts of write in order to get its past participle, written. So now we have our entire irregular verb: write, wrote, written.
References
- ↑ Regular verbs' principal parts can themselves be deduced from just the basic (lemma) form.