
Regular verb: underuse - underused - underused
Present | Present continuous | Preterite | Preterite continuous |
| I underuse you underuse he underuses we underuse you underuse they underuse | I am underusing you are underusing he is underusing we are underusing you are underusing they are underusing | I underused you underused he underused we underused you underused they underused | I was underusing you were underusing he was underusing we were underusing you were underusing they were underusing |
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous |
| I have underused you have underused he has underused we have underused you have underused they have underused | I have been underusing you have been underusing he has been underusing we have been underusing you have been underusing they have been underusing | I had underused you had underused he had underused we had underused you had underused they had underused | I had been underusing you had been underusing he had been underusing we had been underusing you had been underusing they had been underusing |
Future | Future continuous | Future perfect | Future perfect continuous |
| I will underuse you will underuse he will underuse we will underuse you will underuse they will underuse | I will be underusing you will be underusing he will be underusing we will be underusing you will be underusing they will be underusing | I will have underused you will have underused he will have underused we will have underused you will have underused they will have underused | I will have been underusing you will have been underusing he will have been underusing we will have been underusing you will have been underusing they will have been underusing |
Present | Present continuous | Past | Past continuous |
| I would underuse you would underuse he would underuse we would underuse you would underuse they would underuse | I would be underusing you would be underusing he would be underusing we would be underusing you would be underusing they would be underusing | I would have underused you would have underused he would have underused we would have underused you would have underused they would have underused | I would have been underusing you would have been underusing he would have been underusing we would have been underusing you would have been underusing they would have been underusing |
Infinitive | Imperative |
Infinitive | Imperative | ||
| to underuse | underuse Let's underuse underuse |
Present | Past | ||
| underusing | underused |