
Regular verb: ski - skied - skied
Present | Present continuous | Preterite | Preterite continuous | 
|  don't I ski? don't you ski? doesn't he ski? don't we ski? don't you ski? don't they ski?  | am I not skiing? aren't you skiing? isn't he skiing? aren't we skiing? aren't you skiing? aren't they skiing?  | didn't I ski? didn't you ski? didn't he ski? didn't we ski? didn't you ski? didn't they ski?  |  wasn't I skiing? weren't you skiing? wasn't he skiing? weren't we skiing? weren't you skiing? weren't they skiing?  | 
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous | 
| haven't I skied? haven't you skied? hasn't he skied? haven't we skied? haven't you skied? haven't they skied?  | haven't I been skiing? haven't you been skiing? hasn't he been skiing? haven't we been skiing? haven't you been skiing? haven't they been skiing?  | hadn't I skied? hadn't you skied? hadn't he skied? hadn't we skied? hadn't you skied? hadn't they skied?  | hadn't I been skiing? hadn't you been skiing? hadn't he been skiing? hadn't we been skiing? hadn't you been skiing? hadn't they been skiing?  | 
Future | Future continuous | Future perfect | Future perfect continuous | 
| won't I ski? won't you ski? won't he ski? won't we ski? won't you ski? won't they ski?  | won't I be skiing? won't you be skiing? won't he be skiing? won't we be skiing? won't you be skiing? won't they be skiing?  | won't I have skied? won't you have skied? won't he have skied? won't we have skied? won't you have skied? won't they have skied?  | won't I have been skiing? won't you have been skiing? won't he have been skiing? won't we have been skiing? won't you have been skiing? won't they have been skiing?  | 
Present | Present continuous | Past | Past continuous | 
| wouldn't I ski? wouldn't you ski? wouldn't he ski? wouldn't we ski? wouldn't you ski? wouldn't they ski?  | wouldn't I be skiing? wouldn't you be skiing? wouldn't he be skiing? wouldn't we be skiing? wouldn't you be skiing? wouldn't they be skiing?  | wouldn't I have skied? wouldn't you have skied? wouldn't he have skied? wouldn't we have skied? wouldn't you have skied? wouldn't they have skied?  | wouldn't I have been skiing? wouldn't you have been skiing? wouldn't he have been skiing? wouldn't we have been skiing? wouldn't you have been skiing? wouldn't they have been skiing?  | 
Infinitive | Imperative | 
Infinitive | Imperative | ||
| to ski | - - -  | 
Present | Past | ||
| skiing | skied |