Will depart.
Departure is a noun not a verb. "Depart" is a verb, and the future tense is will depart or shall depart.
Departed is the past tense of depart.
Departure is not a verb and does not have a past tense. Depart is a verb, and the past tense is departed.
Were is a past tense form of be. The future tense of be is will be.
Am, is, and are are present tense forms of be. The past tense forms of be are was and were. The future tense of be is will be.
The future tense is will carry.
The future tense is will break.
The future tense of "seek" is "will seek." The future tense of "bring" is "will bring."
The future tense of "was" is "will be."
Past tense - went. Future tense - will go.
The past tense is rained. The future tense is will rain.
"Which" is present tense and "will break" is future tense.