SIMPLE PRESENT

Affirmative

• I underdo
• you underdo
• she/he/it underdoes
• we underdo
• you underdo
• they underdo

Negative

• I do not underdo
• you do not underdo
• she/he/it does not underdo
• we do not underdo
• you do not underdo
• they do not underdo

Interrogative

• do I underdo ?
• do you underdo ?
• does she/he/it underdo ?
• do we underdo ?
• do you underdo ?
• do they underdo ?

Negative - Interrogative

• do I not underdo ?
• do you not underdo ?
• does she/he/it not underdo ?
• do we not underdo ?
• do you not underdo ?
• do they not underdo ?

PRESENT CONTINUOUS

Affirmative

• I am underdoing
• you are underdoing
• she/he/it is underdoing
• we are underdoing
• you are underdoing
• they are underdoing

Negative

• I am not underdoing
• you are not underdoing
• she/he/it is not underdoing
• we are not underdoing
• you are not underdoing
• they are not underdoing

Interrogative

• am I underdoing ?
• are you underdoing ?
• is she/he/it underdoing ?
• are we underdoing ?
• are you underdoing ?
• are they underdoing ?

Negative - Interrogative

• am I not underdoing ?
• are you not underdoing ?
• is she/he/it not underdoing ?
• are we not underdoing ?
• are you not underdoing ?
• are they not underdoing ?

SIMPLE PAST

Affirmative

• I underdid
• you underdid
• she/he/it underdid
• we underdid
• you underdid
• they underdid

Negative

• I did not underdo
• you did not underdo
• she/he/it did not underdo
• we did not underdo
• you did not underdo
• they did not underdo

Interrogative

• did I underdo ?
• did you underdo ?
• did she/he/it underdo ?
• did we underdo ?
• did you underdo ?
• did they underdo ?

Negative - Interrogative

• did I not underdo ?
• did you not underdo ?
• did she/he/it not underdo ?
• did we not underdo ?
• did you not underdo ?
• did they not underdo ?

PRESENT PERFECT

Affirmative

• I have underdone
• you have underdone
• she/he/it has underdone
• we have underdone
• you have underdone
• they have underdone

Negative

• I have not underdone
• you have not underdone
• she/he/it has not underdone
• we have not underdone
• you have not underdone
• they have not underdone

Interrogative

• have I underdone ?
• have you underdone ?
• has she/he/it underdone ?
• have we underdone ?
• have you underdone ?
• have they underdone ?

Negative - Interrogative

• have I not underdone ?
• have you not underdone ?
• has she/he/it not underdone ?
• have we not underdone ?
• have you not underdone ?
• have they not underdone ?

PAST CONTINUOUS

Affirmative

• I was underdoing
• you were underdoing
• she/he/it was underdoing
• we were underdoing
• you were underdoing
• they were underdoing

Negative

• I was not underdoing
• you were not underdoing
• she/he/it was not underdoing
• you were not underdoing
• you were not underdoing
• they were not underdoing

Interrogative

• was I underdoing ?
• were you underdoing ?
• was she/he/it underdoing ?
• were we underdoing ?
• were you underdoing ?
• were they underdoing ?

Negative - Interrogative

• was I not underdoing ?
• were you not underdoing ?
• was she/he/it not underdoing ?
• were we not underdoing ?
• were you not underdoing ?
• were they not underdoing ?

PRESENT PERFECT CONTINUOUS

Affirmative

• I have been underdoing
• you have been underdoing
• she/he/it has been underdoing
• we have been underdoing
• you have been underdoing
• they have been underdoing

Negative

• I have not been underdoing
• you have not been underdoing
• she/he/it has not been underdoing
• we have not been underdoing
• you have not been underdoing
• they have not been underdoing

Interrogative

• have I been underdoing ?
• have you been underdoing ?
• has she/he/it been underdoing ?
• have we been underdoing ?
• have you been underdoing ?
• have they been underdoing ?

Negative - Interrogative

• have I not been underdoing ?
• have you not been underdoing ?
• has she/he/it not been underdoing ?
• have we not been underdoing ?
• have you not been underdoing ?
• have they not been underdoing ?

PAST PERFECT

Affirmative

• I had underdone
• you had underdone
• she/he/it had underdone
• we had underdone
• you had underdone
• they had underdone

Negative

• I had not underdone
• you had not underdone
• she/he/it had not underdone
• we had not underdone
• you had not underdone
• they had not underdone

Interrogative

• had I underdone ?
• had you underdone ?
• had she/he/it underdone ?
• had we underdone ?
• had you underdone ?
• had they underdone ?

Negative - Interrogative

• had I not underdone ?
• had you not underdone ?
• had she/he/it not underdone ?
• had we not underdone ?
• had you not underdone ?
• had they not underdone ?

PAST PERFECT CONTINUOUS

Affirmative

• I had been underdoing
• you had been underdoing
• she/he/it had been underdoing
• we had been underdoing
• you had been underdoing
• they had been underdoing

Negative

• I had not been underdoing
• you had not been underdoing
• she/he/it had not been underdoing
• we had not been underdoing
• you had not been underdoing
• they had not been underdoing

Interrogative

• had I been underdoing ?
• had you been underdoing ?
• had she/he/it been underdoing ?
• had we been underdoing ?
• had you been underdoing ?
• had they been underdoing ?

Negative - Interrogative

• had I not been underdoing ?
• had you not been underdoing ?
• had she/he/it not been underdoing ?
• had we not been underdoing ?
• had you not been underdoing ?
• had they not been underdoing ?