To say in the past tense, you would use the word "said."
The past tense of 'lase' (as in: to use a laser) should be 'lased'.
The word "cut" can be present or past tense. It depends on the context in which it is used.
Yes, "using" is the present participle form of the verb "use." The past tense form of "use" is "used." For example, "I used the computer yesterday."
Yes, the article "an" is used before a word beginning with "i" in the past tense if the pronunciation of the word starts with a vowel sound. For example, "an island".
'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?".
Would is the past tense for will
No. The word "are" is present or future tense. The past tense would be "were".
To say in the past tense, you would use the word "said."
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.
The past tense of 'lase' (as in: to use a laser) should be 'lased'.
Used
You can use should in past tense to say;Should haveShould not have (shouldn't)
The past tense of text is "texted." For example, "I texted my friend yesterday."
used
Decision is a noun. The verb form is decide, and the past tense is decided.