'Byte' is not a verb but a noun. Therefore, it does not have past tense.
Positive is not a verb, so it does not have a past tense.
The past tense of "bear" (the verb, not the noun, as a noun does not have a past tense form) would be "beared".
Story is not a verb so it has no past tense. Story is a noun.
Teacher is a noun, not a verb. Teach is a verb, and the past tense is taught.
verb in past tense
The word partnership does not have a past tense as it is a noun and not a verb. The past tense of the verb form 'partner' is partnered.
No, it is not a noun. It is a past tense verb.
No. Were is a past tense verb.
Collision is a noun not a verb. The verb form is collide, and the past tense is collided.
Weight is a noun not a verb. Weigh, however, is a verb, and its past tense is weighed.
I traveled: verb, past tense. I have traveled: past perfect tense participle