| I | heighten |
| you | heighten |
| he/she/it | heightens |
| we | heighten |
| you | heighten |
| they | heighten |
| I | have heightened |
| you | have heightened |
| he/she/it | has heightened |
| we | have heightened |
| you | have heightened |
| they | have heightened |
| I | heightened |
| you | heightened |
| he/she/it | heightened |
| we | heightened |
| you | heightened |
| they | heightened |
| I | had heightened |
| you | had heightened |
| he/she/it | had heightened |
| we | had heightened |
| you | had heightened |
| they | had heightened |
| I | will heighten |
| you | will heighten |
| he/she/it | will heighten |
| we | will heighten |
| you | will heighten |
| they | will heighten |
| I | will have heightened |
| you | will have heightened |
| he/she/it | will have heightened |
| we | will have heightened |
| you | will have heightened |
| they | will have heightened |
| I | am heightening |
| you | are heightening |
| he/she/it | is heightening |
| we | are heightening |
| you | are heightening |
| they | are heightening |
| I | have been heightening |
| you | have been heightening |
| he/she/it | has been heightening |
| we | have been heightening |
| you | have been heightening |
| they | have been heightening |
| I | was heightening |
| you | were heightening |
| he/she/it | was heightening |
| we | were heightening |
| you | were heightening |
| they | were heightening |
| I | had been heightening |
| you | had been heightening |
| he/she/it | had been heightening |
| we | had been heightening |
| you | had been heightening |
| they | had been heightening |
| I | will be heightening |
| you | will be heightening |
| he/she/it | will be heightening |
| we | will be heightening |
| you | will be heightening |
| they | will be heightening |
| I | will have been heightening |
| you | will have been heightening |
| he/she/it | will have been heightening |
| we | will have been heightening |
| you | will have been heightening |
| they | will have been heightening |
| I | would heighten |
| you | would heighten |
| he/she/it | would heighten |
| we | would heighten |
| you | would heighten |
| they | would heighten |
| I | would have heightened |
| you | would have heightened |
| he/she/it | would have heightened |
| we | would have heightened |
| you | would have heightened |
| they | would have heightened |
| I | would be heightening |
| you | would be heightening |
| he/she/it | would be heightening |
| we | would be heightening |
| you | would be heightening |
| they | would be heightening |
| I | would have been heightening |
| you | would have been heightening |
| he/she/it | would have been heightening |
| we | would have been heightening |
| you | would have been heightening |
| they | would have been heightening |
| You | heighten |
| we | Let's heighten |
| You | heighten |