That is 'will throw'.
The present tense of threw is:I/You/We/They throw.He/She/It throws.
Were is a past tense form of be. The future tense of be is will be.
past tense is got future tense is will get
I throw the book at him (present tense) I will throw the book at him (future tense) I threw the book at him (past tense) through is to go actually into something, like a city, you go through the city.
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 past tense for throw is threw.
The past tense of "thrown" is "threw."
The future tense of "was" is "will be."
The future tense is will break.
The future tense of "seek" is "will seek." The future tense of "bring" is "will bring."
The past tense of fight is fought. The past tense of throw is threw.