Verb Grades and Meaning

Level 3

Learn each verb’s grade, meaning and argument frame together.

How It Works

The traditional seven-grade system classifies final vowels, tones and object behavior. Two-syllable base forms in Grades 1 and 4 have high–low tones with long -a and -e. Grade 2 is transitive, normally low–high with long -a; Grade 3 is intransitive with short -a. Longer stems and exceptional members require fuller patterns. These are pronunciation descriptions, not ordinary Boko spelling marks.

Grade 5 includes forms conventionally called causatives; Grade 6 has long -o and high tones; Grade 7 has short -u and final high tone. Grade 4 includes lexical verbs, and Grades 1–3 can also carry derived meanings. Not every root occurs in every grade.

Compare the verb-phrase fragments sayi gero ‘buy millet’, sayo gero ‘buy millet and bring it’ and sayar da gero ‘sell millet’. Subject-TAM marking supplies the action frame. Frequent monosyllables and some underived -i/-u verbs require separate treatment in the traditional system; Newman's expanded analysis adds Grade 0 and Grade 3 subtypes.

Examples (3)

  1. Mun sayi gero.

    We bought millet.

    Grade 2 selects noun-object -i.

  2. Mun sayo gero.

    We bought millet and brought it back.

    Grade 6 adds the ventive meaning.

  3. Mun sayar da gero.

    We sold millet.

    Grade 5 sayar has the conventional meaning ‘sell’.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

Verb Grades and MeaningLevel 3

Learn This First

Recognize verbal nouns, direct-object reference and da-governed complements before comparing source-attested verb grades and their object contexts.

Learn Next

Patterns that build on this one.