| Present Tense | Past Tense | Future Tense |
|---|---|---|
| I buckle | I buckled | I shall/will buckle |
| We buckle | We buckled | We shall/will buckle |
| You buckle | You buckled | You will buckle |
| He buckles | He buckled | He will buckle |
| She buckles | She buckled | She will buckle |
| It buckles | It buckled | It will buckle |
| They buckle | They buckled | They will buckle |
| Present Continuous | Past Continuous | Future Continuous |
|---|---|---|
| I am buckling | I was buckling | I shall/will be buckling |
| We are buckling | We were buckling | We shall/will be buckling |
| You are buckling | You were buckling | You will be buckling |
| He is buckling | He was buckling | He will be buckling |
| She is buckling | She was buckling | She will be buckling |
| It is buckling | It was buckling | It will be buckling |
| They are buckling | They were buckling | They will be buckling |
| Present Perfect | Past Perfect | Future Perfect |
|---|---|---|
| I have buckled | I had buckled | I shall/will have buckled |
| We have buckled | We had buckled | We shall/will have buckled |
| You have buckled | You had buckled | You will have buckled |
| He has buckled | He had buckled | He will have buckled |
| She has buckled | She had buckled | She will have buckled |
| It has buckled | It had buckled | It will have buckled |
| They have buckled | They had buckled | They will have buckled |
| Present Perfect Continuous | Past Perfect Continuous | Future Perfect Continuous |
|---|---|---|
| I have been buckling | I had been buckling | I shall/will have been buckling |
| We have been buckling | We had been buckling | We shall/will have been buckling |
| You have been buckling | You had been buckling | You will have been buckling |
| He has been buckling | He had been buckling | He will have been buckling |
| She has been buckling | She had been buckling | She will have been buckling |
| It has been buckling | It had been buckling | It will have been buckling |
| They have been buckling | They had been buckling | They will have been buckling |