| 1. | Base Form (Infinitive): | Buy |
| 2. | Simple Past: | Bought |
| 3. | Past Participle: | Bought |
| 4. | Present Participle: | Buying |
| 5. | 3rd Person Singular: | Buys |

Buy past tense
| Bought |
| Bought is the past tense of the word buy. |
Buy past participle
| Bought |
| Bought is the past participle of the word buy. |
Buy verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Buy | Bought | Bought | Buying |
Conjugation of Buy
| Simple / Indefinite Present Tense |
| I buy a car. |
| He/She/It buys a car. |
| You/We/They buy a car. |
| Simple Past Tense |
| I bought a car. |
| He/She/It bought a car. |
| You/We/They bought a car. |
| Simple Future Tense |
| I will/shall buy a car. |
| He/She/It will buy a car. |
| You/We/They will/shall buy a car. |
| Present Continuous Tense |
| I am buying a car. |
| He/She/It is buying a car. |
| You/We/They are buying a car. |
| Past Continuous Tense |
| I was buying a car. |
| He/She/It was buying a car. |
| You/We/They were buying a car. |
| Future Continuous Tense |
| I will be buying a car. |
| He/She/It will be buying a car. |
| You/We/They will be buying a car. |
| Present Perfect Tense |
| I have bought a car. |
| He/She/It has bought a car. |
| You/We/They have bought a car. |
| Past Perfect Tense |
| I had bought a car. |
| He/She/It had bought a car. |
| You/We/They had bought a car. |
| Future Perfect Tense |
| I will have bought a car. |
| He/She/It will have bought a car. |
| You/We/They will have bought a car. |
| Present Perfect Continuous Tense |
| I have been buying a car. |
| He/She/It has been buying a car. |
| You/We/They have been buying a car. |
| Past Perfect Continuous Tense |
| I had been buying a car. |
| He/She/It had been buying a car. |
| You/We/They had been buying a car. |
| Future Perfect Continuous Tense |
| I will have been buying a car. |
| He/She/It will have been buying a car. |
| You/We/They will have been buying a car. |