| I | think back |
| you | think back |
| he/she/it | thinks back |
| we | think back |
| you | think back |
| they | think back |
| I | have thought back |
| you | have thought back |
| he/she/it | has thought back |
| we | have thought back |
| you | have thought back |
| they | have thought back |
| I | thought back |
| you | thought back |
| he/she/it | thought back |
| we | thought back |
| you | thought back |
| they | thought back |
| I | had thought back |
| you | had thought back |
| he/she/it | had thought back |
| we | had thought back |
| you | had thought back |
| they | had thought back |
| I | will think back |
| you | will think back |
| he/she/it | will think back |
| we | will think back |
| you | will think back |
| they | will think back |
| I | will have thought back |
| you | will have thought back |
| he/she/it | will have thought back |
| we | will have thought back |
| you | will have thought back |
| they | will have thought back |
| I | am thinking back |
| you | are thinking back |
| he/she/it | is thinking back |
| we | are thinking back |
| you | are thinking back |
| they | are thinking back |
| I | have been thinking back |
| you | have been thinking back |
| he/she/it | has been thinking back |
| we | have been thinking back |
| you | have been thinking back |
| they | have been thinking back |
| I | was thinking back |
| you | were thinking back |
| he/she/it | was thinking back |
| we | were thinking back |
| you | were thinking back |
| they | were thinking back |
| I | had been thinking back |
| you | had been thinking back |
| he/she/it | had been thinking back |
| we | had been thinking back |
| you | had been thinking back |
| they | had been thinking back |
| I | will be thinking back |
| you | will be thinking back |
| he/she/it | will be thinking back |
| we | will be thinking back |
| you | will be thinking back |
| they | will be thinking back |
| I | will have been thinking back |
| you | will have been thinking back |
| he/she/it | will have been thinking back |
| we | will have been thinking back |
| you | will have been thinking back |
| they | will have been thinking back |
| I | would think back |
| you | would think back |
| he/she/it | would think back |
| we | would think back |
| you | would think back |
| they | would think back |
| I | would have thought back |
| you | would have thought back |
| he/she/it | would have thought back |
| we | would have thought back |
| you | would have thought back |
| they | would have thought back |
| I | would be thinking back |
| you | would be thinking back |
| he/she/it | would be thinking back |
| we | would be thinking back |
| you | would be thinking back |
| they | would be thinking back |
| I | would have been thinking back |
| you | would have been thinking back |
| he/she/it | would have been thinking back |
| we | would have been thinking back |
| you | would have been thinking back |
| they | would have been thinking back |
| You | think back |
| we | Let's think back |
| You | think back |