Used
Would is the past tense for will
'Who' is a pronoun, it doesn't have a past tense. But you can use the word "was" as in "who was on the phone?".
No. The word "are" is present or future tense. The past tense would be "were".
To is not a verb and does not have a past tense.
The word game is not past tense. If you use "game" as a verb, the past tense would be "gamed."
is - is present tense. He is from China. was - is past tense. He was sick last week.
'Was' is the past tense of the word 'is'.
The past tense of 'lase' (as in: to use a laser) should be 'lased'.
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
You can use should in past tense to say;Should haveShould not have (shouldn't)