How to Conjugate Do

by Craig Shrives

This Page Includes...

Do in the Different Tenses

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

The Five Forms of Do

FormdoAlternative Name
Base FormdoInfinitive Form
The -S FormdoesThird Person Singular Form
Past FormdidSimple Past Tense
The -ING FormdoingPresent Participle Form
The Past Participle Formdone[no alternative name]

Conjugating Do

The tables below show how "do" 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
  • did
  • did
  • did
  • did
  • did
  • did
The simple past tense is for a completed activity that happened in the past.
  • was doing
  • were doing
  • was doing
  • were doing
  • were doing
  • were doing
The past progressive tense is for an ongoing activity in the past. Often, it is used to set the scene for another action.
  • had done
  • had done
  • had done
  • had done
  • had done
  • had done
The past perfect tense is for emphasizing that an action was completed before another took place.
  • had been doing
  • had been doing
  • had been doing
  • had been doing
  • had been doing
  • had been doing
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
  • do
  • do
  • does
  • do
  • do
  • do
The simple present tense is mostly for a fact or a habit.
  • am doing
  • are doing
  • is doing
  • are doing
  • are doing
  • are doing
The present progressive tense is for an ongoing action in the present.
  • have done
  • have done
  • has done
  • have done
  • have done
  • have done
The present perfect tense is for an action that began in the past. (Often, the action continues into the present.)
  • have been doing
  • have been doing
  • has been doing
  • have been doing
  • have been doing
  • have been doing
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 do
  • will do
  • will do
  • will do
  • will do
  • will do
The simple future tense is for an action that will occur in the future.
  • will be doing
  • will be doing
  • will be doing
  • will be doing
  • will be doing
  • will be doing
The future progressive tense is for an ongoing action that will occur in the future.
  • will have done
  • will have done
  • will have done
  • will have done
  • will have done
  • will have done
The future perfect tense is for an action that will have been completed at some point in the future.
  • will have been doing
  • will have been doing
  • will have been doing
  • will have been doing
  • will have been doing
  • will have been doing
The future perfect progressive tense is for an ongoing action that will be completed at some specified time in the future.

Help Us To Improve Grammar Monster

  • Do you disagree with something on this page?
  • Did you spot a typo?
Next lesson >

See Also

Parts of Speech Lists 200 Important Irregular Verbs

Page URL