| Present Tense | Past Tense | Future Tense |
|---|---|---|
| I bumble | I bumbled | I shall/will bumble |
| We bumble | We bumbled | We shall/will bumble |
| You bumble | You bumbled | You will bumble |
| He bumbles | He bumbled | He will bumble |
| She bumbles | She bumbled | She will bumble |
| It bumbles | It bumbled | It will bumble |
| They bumble | They bumbled | They will bumble |
| Present Continuous | Past Continuous | Future Continuous |
|---|---|---|
| I am bumbling | I was bumbling | I shall/will be bumbling |
| We are bumbling | We were bumbling | We shall/will be bumbling |
| You are bumbling | You were bumbling | You will be bumbling |
| He is bumbling | He was bumbling | He will be bumbling |
| She is bumbling | She was bumbling | She will be bumbling |
| It is bumbling | It was bumbling | It will be bumbling |
| They are bumbling | They were bumbling | They will be bumbling |
| Present Perfect | Past Perfect | Future Perfect |
|---|---|---|
| I have Bumbled | I had Bumbled | I shall/will have Bumbled |
| We have Bumbled | We had Bumbled | We shall/will have Bumbled |
| You have Bumbled | You had Bumbled | You will have Bumbled |
| He has Bumbled | He had Bumbled | He will have Bumbled |
| She has Bumbled | She had Bumbled | She will have Bumbled |
| It has Bumbled | It had Bumbled | It will have Bumbled |
| They have Bumbled | They had Bumbled | They will have Bumbled |
| Present Perfect Continuous | Past Perfect Continuous | Future Perfect Continuous |
|---|---|---|
| I have been bumbling | I had been bumbling | I shall/will have been bumbling |
| We have been bumbling | We had been bumbling | We shall/will have been bumbling |
| You have been bumbling | You had been bumbling | You will have been bumbling |
| He has been bumbling | He had been bumbling | He will have been bumbling |
| She has been bumbling | She had been bumbling | She will have been bumbling |
| It has been bumbling | It had been bumbling | It will have been bumbling |
| They have been bumbling | They had been bumbling | They will have been bumbling |