...NOTE: Final s and final n, especially in the plural of nouns andin verbs, do not count... 
Gustavo Adolfo Becquer 「Legends, Tales and Poems」
...As we advance north we find this phenomenon ever increasing; for instance in Fernando Po; but the Mpongwe limits the change to verbs...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1」
...Some verbs in -ri or -li however often omit this syllable...
Robert W. Williamson 「The Mafulu」
...The past participle of some verbs has not yet been ascertained...
Robert W. Williamson 「The Mafulu」
..., of these verbs are found as follows:...
Robert W. Williamson 「The Mafulu」
...In the negative these compound verbs are considered a single word...
Robert W. Williamson 「The Mafulu」
...The suffixes -meme and -ngo are added to neuter verbs...
Robert W. Williamson 「The Mafulu」
...The auxiliary verbs, except ga, may perhaps be included among the suffixes (see p...
Robert W. Williamson 「The Mafulu」
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