Quantity is a noun so there would be no past tense.
The word "enough" doesn't have a past tense as it's not a verb.
i do not think there is a past tense of "neat"...."your room is very neat" (present tense) and "her room was very neat" (past tense)...same word.
Simple is not a verb therefore it doesn't have a past tense. The past of perfect is perfected
The word amount does not have a past tense.Alternative AnswerThe word "amount" has a past tense when it is used as a verb. When used as a verb, it means "to total" or "to be the same as". The past tense of this form is amounted.
Flew is the past tense of fly; counted is the past tense of count.
Ate is the past tense of the word eat. Its a past tense word
The past tense of 'is' is 'was'.
What is the past tense word for think
The past tense of the word cry is cried.
The past tense of "after" is "aftered," but it is not commonly used. Instead, the past tense is usually indicated by using the word "after" in combination with a verb in the past tense. For example: "He arrived after the party had ended."
The past tense is were.
The word "had" is a past tense verb.
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of the word "agree" is "agreed."
There is no past tense for "voters" as the word is not a verb. A past tense is the word to describe the action/verb retrospectively. If you were meaning "vote", the past tense of this word is "voted".
"received" is the past tense. The present tense of that word is "receive"
The past tense of the word forget is the word "forgot".