present passive.
They verify the program every week - active, present simple.
The program is verified every week - passive, present simple (doesn't tell us who verifies)
"Verified" is the past tense of "verify".
The past tense of verify is verified.
program
"Has" is the present tense form of the verb "have." The past tense form of "has" is "had."
Tense is a noun when talking about a grammatical tense. The noun form for the adjective tense or the verb tense is tenseness. Another noun form is tension.
The present tense form of "were" is "are."
The past tense form is destroyed.
Formed is the past tense of form.
struck is the past tense verbStruck IS the past tense form...of the word strike.
Have is already present tense.
appeared is the past tense and past participle of the verb appear.Have appeared is the present perfect tense :I have appeared on TV many times.I appeared on a TV program last night.
The past tense is laid.