It is "cost" (same form as present tense).
Cost is the present, past, and future tense of cost.
cost
Like the verb to set, the verb to cost has a limited conjugation. Both the past tense and past participle are also cost.Past tense: His mistake cost him his freedomPresent perfect: His mistake has cost him his freedom.Past perfect: His mistake had cost him his freedom.
The past tense is also cost. It's an irregular verb.
It is "cost" (same form as present tense).
The past tense of cost is cost; the past tense of play is played.
the past tense is cost. ex. When i bought my jeans it COST me $50.
Cost is the present, past, and future tense of cost.
cost
The past tense of "cost" is "cost" and the past participle is also "cost." For example: "The shirt cost $20." (past tense) and "The car has cost me a lot of money." (past participle).
Like the verb to set, the verb to cost has a limited conjugation. Both the past tense and past participle are also cost.Past tense: His mistake cost him his freedomPresent perfect: His mistake has cost him his freedom.Past perfect: His mistake had cost him his freedom.
The past tense is also cost. It's an irregular verb.
present-cost present participle-costing past-cost past participle-cost
Start is a regular verb so you add -ed to make the past tense = startedCompare this with irregular verbs their past tense is not made by adding -ed they have another word or sometimes the same word.eg cost - past is cost. Run - past is ran. See - past is saw.
the past tense of am is was and the past tense of has is had
The past tense of "has" is "had" and the past tense of "have" is "had."