Learn how to conjugate the irregular English verb deteriorate with the below conjugation table. To listen to the audio pronunciation for each conjugation, simply click on the speaker icon next to the conjugated tense. To practice and test yourself on the English verb deteriorate, first add it to your verb list by clicking on the Add to My Verbs button above.

Indicative

Present simple

  • I deteriorate
  • you deteriorate
  • he deteriorates
  • we deteriorate
  • you deteriorate
  • they deteriorate

Past simple

  • I deteriorated
  • you deteriorated
  • he deteriorated
  • we deteriorated
  • you deteriorated
  • they deteriorated

Future

  • I will deteriorate
  • you will deteriorate
  • he will deteriorate
  • we will deteriorate
  • you will deteriorate
  • they will deteriorate

Present continuous

  • I am deteriorating
  • you are deteriorating
  • he is deteriorating
  • we are deteriorating
  • you are deteriorating
  • they are deteriorating

Past continuous

  • I was deteriorating
  • you were deteriorating
  • he was deteriorating
  • we were deteriorating
  • you were deteriorating
  • they were deteriorating

Future continuous

  • I will be deteriorating
  • you will be deteriorating
  • he will be deteriorating
  • we will be deteriorating
  • you will be deteriorating
  • they will be deteriorating

Present perfect

  • I have deteriorated
  • you have deteriorated
  • he has deteriorated
  • we have deteriorated
  • you have deteriorated
  • they have deteriorated

Pluperfect

  • I had deteriorated
  • you had deteriorated
  • he had deteriorated
  • we had deteriorated
  • you had deteriorated
  • they had deteriorated

Future perfect

  • I will have deteriorated
  • you will have deteriorated
  • he will have deteriorated
  • we will have deteriorated
  • you will have deteriorated
  • they will have deteriorated

Present perfect continuous

  • I have been deteriorating
  • you have been deteriorating
  • he has been deteriorating
  • we have been deteriorating
  • you have been deteriorating
  • they have been deteriorating

Pluperfect continuous

  • I had been deteriorating
  • you had been deteriorating
  • he had been deteriorating
  • we had been deteriorating
  • you had been deteriorating
  • they had been deteriorating

Future perfect continuous

  • I will have been deteriorating
  • you will have been deteriorating
  • he will have been deteriorating
  • we will have been deteriorating
  • you will have been deteriorating
  • they will have been deteriorating

Subjunctive

  • I would deteriorate
  • you would deteriorate
  • he would deteriorate
  • we would deteriorate
  • you would deteriorate
  • they would deteriorate

  • I would be deteriorating
  • you would be deteriorating
  • he would be deteriorating
  • we would be deteriorating
  • you would be deteriorating
  • they would be deteriorating

  • I would have deteriorated
  • you would have deteriorated
  • he would have deteriorated
  • we would have deteriorated
  • you would have deteriorated
  • they would have deteriorated

  • I would have been deteriorating
  • you would have been deteriorating
  • he would have been deteriorating
  • we would have been deteriorating
  • you would have been deteriorating
  • they would have been deteriorating

Imperative

Affirmative

  • (you) deteriorate
  • (we) Let's deteriorate
  • (you) deteriorate

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