| Simple | Progressive | Perfect | Progressive |
| Present |
| I skulk |
| you skulk |
| he/she/it skulks |
| we skulk |
| you all skulk |
| they skulk |
|
| I am skulking |
| you are skulking |
| he/she/it is skulking |
| we are skulking |
| you all are skulking |
| they are skulking |
|
| I have skulked |
| you have skulked |
| he/she/it has skulked |
| we have skulked |
| you all have skulked |
| they have skulked |
|
| I have been skulking |
| you have been skulking |
| he/she/it has been skulking |
| we have been skulking |
| you all have been skulking |
| they have been skulking |
|
| Past |
| I skulked |
| you skulked |
| he/she/it skulked |
| we skulked |
| you all skulked |
| they skulked |
|
| I was skulking |
| you were skulking |
| he/she/it was skulking |
| we were skulking |
| you all were skulking |
| they were skulking |
|
| I had skulked |
| you had skulked |
| he/she/it had skulked |
| we had skulked |
| you all had skulked |
| they had skulked |
|
| I had been skulking |
| you had been skulking |
| he/she/it had been skulking |
| we had been skulking |
| you all had been skulking |
| they had been skulking |
|
| Future |
| I will skulk |
| you will skulk |
| he/she/it will skulk |
| we will skulk |
| you all will skulk |
| they will skulk |
|
| I will be skulking |
| you will be skulking |
| he/she/it will be skulking |
| we are skulking |
| you all will be skulking |
| they will be skulking |
|
| I will have skulked |
| you will have skulked |
| he/she/it will have skulked |
| we will have skulked |
| you all will have skulked |
| they will have skulked |
|
| I will have been skulking |
| you will have been skulking |
| he/she/it will have been skulking |
| we will have been skulking |
| you all will have been skulking |
| they will have been skulking |
|
