Ought is already acceptable in past tense.
'Ought to be' is present tense, while 'Ought to have been' or 'Ought to have' is past tense.
The past tense of "ought" is "oughted."
Choose is not past tense, it's present tense. The past tense is chose.
Is can be used in the past tense if it's in its past tense form, which is was.
The past tense is undid.
The past tense is downed.
past tense is dodged
The past tense of ought is ought.
'Ought to be' is present tense. 'Ought to have been' is past tense.
The past tense of say is said.
The past tense of "say" is "said."
"It has been" is in the present perfect tense because it indicates an action that started in the past and has continued up to the present moment.
Was is the past tense of the verb 'be'
To say in the past tense, you would use the word "said."
The past perfect tense of say is had said.
The past tense in 'ruined'
Said is already in the past tense. It's the past tense of say.
The past tense of say is said.
The past tense of "say" is "said."