Fermentation is a noun, not a verb. Only verbs have tenses.
Solute isn't a verb and so doesn't have a past tense.
"They were doing an experiment" is past tense.
The past tense of scent is scented. For example, "She scented the flowers in the vase."
The word "sublimation" is a noun and so doesn't have a past tense. Only verbs have tenses.
Condensate is primarily used as a noun. If it's being used as a verb the past tense is condensated.
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."
The past tense of "you will not" is "you would not."
Past tense I had Present tense I have Future Tense I will have