Certain is not a verb so it does not have a past tense.
'Certain' is an adjective, it doesn't have a past tense.
Converted. Simply add -ed to change the word to it's past tense form, add will or shall in front of the word to change the word to it's future tense form, and finally, add -ing to the end of a certain word to change it to it's present tense form. Hope I Helped! -Westgunner101
The past tense is willed.
Forgot is the past tense of forget. There is no past tense of forgot, forgot IS past tense.
The word got is the past tense of get.
'Was' is the past tense of the word 'is'.
'Certain' is an adjective, it doesn't have a past tense.
The word "were" is past tense. It is the past tense of the verb "to be."
It is the past tense.
Ate is the past tense of the word eat. Its a past tense word
"received" is the past tense. The present tense of that word is "receive"
What is the past tense word for think
The word recognized is the past tense.
The past tense of the word forget is the word "forgot".
The past tense of word accept is accepted.
The past tense is slept.
The past tense is cried.