The past tense of believe is believed.
The past tense of to "believe" would be to have "believed".
The past tense of "say" is "said."
The past tense of say is said.
The word believed is a past tense verb. It is the past of believe.
Yes it's the past tense of believe.
"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.
No, "can" is a modal verb that denotes ability or possibility in the present tense. The past tense of "can" is "could."