infinitive: buy
past: bought
past participle: bought
The past tense is bought.
The past tense of buy is bought.
By is not a verb and does not have a past tense. Buy is a verb, and the past tense is bought.
The past tense of buy is bought.
The past participle of buy is bought.
The past and past participle for "buy" is "bought."
The past continuous tense of buy is:I/He/She/It was buying.You/We/They were buying.
"Bought" is the past tense of the verb "to buy".
The past tense is: You bought cake.
The past tense is bought.
Buy is present tense. Buying is the present participle. The past and past participle is bought.
Buy IS present tense. The past tense is bought.
This sentence is already in the past tense. "Went" is the past tense of the verb "go".