追試を受けなきゃならない。

supplementary examination

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to receive; to get; to catch (e.g. a ball); to be struck by (wind, waves, sunlight, etc.); to sustain (damage); to incur (a loss); to suffer (an injury); to feel (influence); to undergo (e.g. surgery); to take (a test); to accept (a challenge); to be given (e.g. life, talent); to follow; to succeed; to be descended from; to face (south, etc.); to be modified by; to obtain (a pawned item, etc.) by paying a fee; to be well-received; to become popular; to go down well

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...