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