Past tense.
The past tense is eroded.
First, erosion is a noun and does not have tenses. The matching verb is "to erode". The past tense is eroded. Acid rain slowly eroded away the sandstone statues at the capitol.
Past tense I had Present tense I have Future Tense I will have
Have is present tense. The past tense is had.
No 'is' is present tense. am/is/are = present tense was/were = past tense
Present - am. Past - was and were.
Creep is present tense. The past tense is crept.
"Has" is the present tense form of the verb "have." The past tense form of "has" is "had."
Present tense - clean. Past tense - cleaned. Present tense - work. Past tense - worked. Present tense - play. Past tense - played.
Erosion is a noun and therefore has no tenses. The related verb is to erode, which is regular, so the simple past is eroded.
Go is present tense. The past tense is went.
Should is present tense.