The verb "compar" seems to be a typo, and you might be referring to "comparar," which means "to compare." Here is the requested conjugation:
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El/Ella/Usted form of the present tense:
- Él/Ella/Usted compara (He/She/You compare)
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Affirmative tú command:
- Compara (Compare)
If you meant a different verb or need more information, please let me know!