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Morphology analysis
petroleum (5582) | Noun, only singular
| petroleum | singular |
petroleum (532) | Adjective, superlative
| petroleum | adjective | ||
| petroleumer | comparative | ||
| petroleumest | superlative |
petroleum (111) | Noun, only singular
| petroleum | singular |
petroleum (3) | Noun
| petroleum | singular | ||
| petroleums | plural |
petroleum (1) | Verb
| petroleum | |||
| petroleumes |