The past tense of power is powered.
the past tense of am is was and the past tense of has is had
'Surge' is the present tense. 'There is a power surge!' Past tense 'Surged'. 'The power surged and caused a black-out.' future tense 'will surge.'
The past tense of "has" is "had" and the past tense of "have" is "had."
Power is a verb. Power/powers is the present tense, powered is the past tense and past participle, and powering is the present participle. Example: Electricity powers homes.
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
The word "reigned" is in the past tense. It refers to someone having ruled or held a position of power or authority in the past.
"will be" is the future tense of "be". The past tense of "be" is "was/were".
The past tense is she did.
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of "will" is "would". The past tense of "to be" is "was" or "were".
The past tense of "you will not" is "you would not."
The past tense is had.