Signed off.
The past tense of 'sign' is signed.
The past tense of "sign" is "signed."
The past tense is "stood off".
The past tense of "drop off" would be "dropped off".
The past tense of "tear off" is "tore off."
The past tense of 'sign' is signed.
The past tense of "sign" is "signed."
The past tense is "stood off".
The past tense of "drop off" would be "dropped off".
The past tense of "tear off" is "tore off."
The past tense of 'hold off' would be 'held off.'
"Had struck off" is the past perfect tense.
The past tense of "turn off" is "turned off." For example, "I turned off the lights before leaving the room."
The past tense of the compound verb "lay off" is "laid off."
The past tense of say is said.
The word off doesn't have a past tense. Only verbs have tenses.
The past participle is signed. Signed is also the simple past tense.