Present
| I | counteract |
| You | counteract |
| She | counteracts |
| We | counteract |
| They | counteract |
Past
| I | counteracted |
| You | counteracted |
| She | counteracted |
| We | counteracted |
| They | counteracted |
Perfect
| I | have | counteracted |
| You | have | counteracted |
| She | has | counteracted |
| We | have | counteracted |
| They | have | counteracted |
Future
| I | will | counteract |
| You | will | counteract |
| She | will | counteract |
| We | will | counteract |
| They | will | counteract |
Past Perfect
| I | had | counteracted |
| You | had | counteracted |
| She | had | counteracted |
| We | had | counteracted |
| They | had | counteracted |
Future Perfect
| I | will | have | counteracted |
| You | will | have | counteracted |
| She | will | have | counteracted |
| We | will | have | counteracted |
| They | will | have | counteracted |
Present - Conditional
| I | would | counteract |
| You | would | counteract |
| She | would | counteract |
| We | would | counteract |
| They | would | counteract |
Perfect - Conditional
| I | would | have | counteracted |
| You | would | have | counteracted |
| She | would | have | counteracted |
| We | would | have | counteracted |
| They | would | have | counteracted |