The past tense of erupt is erupted.
The past tense of "ground" is "ground" or "grinded," depending on the context. "Ground" is more commonly used as the past tense when referring to the action of grinding something down, while "grinded" may be used in more informal or dialectal contexts.
Metamorphism is a noun therefore it doesn't have tense. The verb form is metamorphose.Metamorphose is a regular verb so the past and past participle is + ed.metamorphosed
Erosion is a noun and therefore has no tenses. The related verb is to erode, which is regular, so the simple past is eroded.
Since "geology" is a noun, it doesn't have any tenses. Only verbs have tenses.
No, erupt is a verb.The noun form of the verb to erupt is eruption.
The past perfect tense of erupt is had erupted.
past tense: erupted present tense: erupting future tense: erupt
the past tense of am is was and the past tense of has is had
The past tense of "has" is "had" and the past tense of "have" is "had."
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
"will be" is the future tense of "be". The past tense of "be" is "was/were".
The past tense is she did.
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of "will" is "would". The past tense of "to be" is "was" or "were".
HAD is the Past Tense of TO HAVE.
The past tense is had.
The past tense of "am" is "was" and the past perfect tense of "has" is "had."