| I | crumple |
| you | crumple |
| he/she/it | crumples |
| we | crumple |
| you | crumple |
| they | crumple |
| I | have crumpled |
| you | have crumpled |
| he/she/it | has crumpled |
| we | have crumpled |
| you | have crumpled |
| they | have crumpled |
| I | crumpled |
| you | crumpled |
| he/she/it | crumpled |
| we | crumpled |
| you | crumpled |
| they | crumpled |
| I | had crumpled |
| you | had crumpled |
| he/she/it | had crumpled |
| we | had crumpled |
| you | had crumpled |
| they | had crumpled |
| I | will crumple |
| you | will crumple |
| he/she/it | will crumple |
| we | will crumple |
| you | will crumple |
| they | will crumple |
| I | will have crumpled |
| you | will have crumpled |
| he/she/it | will have crumpled |
| we | will have crumpled |
| you | will have crumpled |
| they | will have crumpled |
| I | am crumpling |
| you | are crumpling |
| he/she/it | is crumpling |
| we | are crumpling |
| you | are crumpling |
| they | are crumpling |
| I | have been crumpling |
| you | have been crumpling |
| he/she/it | has been crumpling |
| we | have been crumpling |
| you | have been crumpling |
| they | have been crumpling |
| I | was crumpling |
| you | were crumpling |
| he/she/it | was crumpling |
| we | were crumpling |
| you | were crumpling |
| they | were crumpling |
| I | had been crumpling |
| you | had been crumpling |
| he/she/it | had been crumpling |
| we | had been crumpling |
| you | had been crumpling |
| they | had been crumpling |
| I | will be crumpling |
| you | will be crumpling |
| he/she/it | will be crumpling |
| we | will be crumpling |
| you | will be crumpling |
| they | will be crumpling |
| I | will have been crumpling |
| you | will have been crumpling |
| he/she/it | will have been crumpling |
| we | will have been crumpling |
| you | will have been crumpling |
| they | will have been crumpling |
| I | would crumple |
| you | would crumple |
| he/she/it | would crumple |
| we | would crumple |
| you | would crumple |
| they | would crumple |
| I | would have crumpled |
| you | would have crumpled |
| he/she/it | would have crumpled |
| we | would have crumpled |
| you | would have crumpled |
| they | would have crumpled |
| I | would be crumpling |
| you | would be crumpling |
| he/she/it | would be crumpling |
| we | would be crumpling |
| you | would be crumpling |
| they | would be crumpling |
| I | would have been crumpling |
| you | would have been crumpling |
| he/she/it | would have been crumpling |
| we | would have been crumpling |
| you | would have been crumpling |
| they | would have been crumpling |
| You | crumple |
| we | Let's crumple |
| You | crumple |