How to Conjugate Lose

by Craig Shrives

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Lose in the Different Tenses

The verb "lose" is an irregular verb. (This means that "lose" does not form its simple past tense or its past participle by adding "-ed" or "-d" to the base form.)

The Five Forms of Lose

FormloseAlternative Name
Base FormloseInfinitive Form
The -S FormlosesThird Person Singular Form
Past FormlostSimple Past Tense
The -ING FormlosingPresent Participle Form
The Past Participle Formlost[no alternative name]

Conjugating Lose

The tables below show how "lose" conjugates in the past, present, and future tenses.

Past Tenses

PersonSimple PastPast Progressive TensePast Perfect TensePast Perfect Progressive Tense
  • I
  • you
  • he/she/it
  • we
  • you
  • they
  • lost
  • lost
  • lost
  • lost
  • lost
  • lost
The simple past tense is for a completed activity that happened in the past.
  • was losing
  • were losing
  • was losing
  • were losing
  • were losing
  • were losing
The past progressive tense is for an ongoing activity in the past. Often, it is used to set the scene for another action.
  • had lost
  • had lost
  • had lost
  • had lost
  • had lost
  • had lost
The past perfect tense is for emphasizing that an action was completed before another took place.
  • had been losing
  • had been losing
  • had been losing
  • had been losing
  • had been losing
  • had been losing
The past perfect progressive tense is for showing that an ongoing action in the past has ended.

Present Tenses

PersonSimple PresentPresent Progressive TensePresent Perfect TensePresent Perfect Progressive Tense
  • I
  • you
  • he/she/it
  • we
  • you
  • they
  • lose
  • lose
  • loses
  • lose
  • lose
  • lose
The simple present tense is mostly for a fact or a habit.
  • am losing
  • are losing
  • is losing
  • are losing
  • are losing
  • are losing
The present progressive tense is for an ongoing action in the present.
  • have lost
  • have lost
  • has lost
  • have lost
  • have lost
  • have lost
The present perfect tense is for an action that began in the past. (Often, the action continues into the present.)
  • have been losing
  • have been losing
  • has been losing
  • have been losing
  • have been losing
  • have been losing
The present perfect progressive tense is for a continuous activity that began in the past and continues into the present (or finished very recently).

Future Tenses

PersonSimple FutureFuture Progressive TenseFuture Perfect TenseFuture Perfect Progressive Tense
  • I
  • you
  • he/she/it
  • we
  • you
  • they
  • will lose
  • will lose
  • will lose
  • will lose
  • will lose
  • will lose
The simple future tense is for an action that will occur in the future.
  • will be losing
  • will be losing
  • will be losing
  • will be losing
  • will be losing
  • will be losing
The future progressive tense is for an ongoing action that will occur in the future.
  • will have lost
  • will have lost
  • will have lost
  • will have lost
  • will have lost
  • will have lost
The future perfect tense is for an action that will have been completed at some point in the future.
  • will have been losing
  • will have been losing
  • will have been losing
  • will have been losing
  • will have been losing
  • will have been losing
The future perfect progressive tense is for an ongoing action that will be completed at some specified time in the future.

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See Also

Parts of Speech Lists 200 Important Irregular Verbs

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