COULD NOT
Unknown can be an adjective or a noun, not a verb, so it cannot have a past tense.
The past tense of "help" would be "helped".helpedHelped.
"so far" is not a verb, hence it cannot have any tense (Past Tense included).
No. You cannot say I have went somewhere. You can say: 1. I went there. (simple form of past tense) or 2. I have gone there. (present perfect tense)
Hide is present tense, not past tense. The past tense is hid.
The past tense of cannot is couldn't!!!
Wore is the past tense of wear. You cannot have a past tense of a past tense, so there is no such word as weared.
"Past" is not a verb, therefore it cannot have a past tense. "Passed" is a verb, in the past tense.
what is the past form of the verb cannot
Cad is not a verb, so it cannot have a past tense.
The past tense of "integrity" is also "integrity" as integrity is a noun representing moral uprightness and ethics which does not change with tense.
"They" is a pronoun. It cannot have a past tense, as it is a word for a group of people or objects, and not an action / verb that can alter from the present tense to the past.
Unknown can be an adjective or a noun, not a verb, so it cannot have a past tense.
The past tense of "help" would be "helped".helpedHelped.
"so far" is not a verb, hence it cannot have any tense (Past Tense included).
Cannot.
sword is not a verb so cannot have a tense. it's a noun.