| Present Tense | Past Tense | Future Tense |
|---|---|---|
| I grind | I ground | I shall/will grind |
| We grind | We ground | We shall/will grind |
| You grind | You ground | You will grind |
| He grinds | He ground | He will grind |
| She grinds | She ground | She will grind |
| It grinds | It ground | It will grind |
| They grind | They ground | They will grind |
| Present Continuous | Past Continuous | Future Continuous |
|---|---|---|
| I am grinding | I was grinding | I shall/will be grinding |
| We are grinding | We were grinding | We shall/will be grinding |
| You are grinding | You were grinding | You will be grinding |
| He is grinding | He was grinding | He will be grinding |
| She is grinding | She was grinding | She will be grinding |
| It is grinding | It was grinding | It will be grinding |
| They are grinding | They were grinding | They will be grinding |
| Present Perfect | Past Perfect | Future Perfect |
|---|---|---|
| I have ground | I had ground | I shall/will have ground |
| We have ground | We had ground | We shall/will have ground |
| You have ground | You had ground | You will have ground |
| He has ground | He had ground | He will have ground |
| She has ground | She had ground | She will have ground |
| It has ground | It had ground | It will have ground |
| They have ground | They had ground | They will have ground |
| Present Perfect Continuous | Past Perfect Continuous | Future Perfect Continuous |
|---|---|---|
| I have been grinding | I had been grinding | I shall/will have been grinding |
| We have been grinding | We had been grinding | We shall/will have been grinding |
| You have been grinding | You had been grinding | You will have been grinding |
| He has been grinding | He had been grinding | He will have been grinding |
| She has been grinding | She had been grinding | She will have been grinding |
| It has been grinding | It had been grinding | It will have been grinding |
| They have been grinding | They had been grinding | They will have been grinding |