The past tense in 'ruined'
RUINED
That is the correct spelling of the verb "ruin" and the past tense "ruined."
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.
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."
The past tense of shout is "shouted"