SIMPLE PRESENT

Affirmative

• I esterify
• you esterify
• she/he/it esterifies
• we esterify
• you esterify
• they esterify

Negative

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

Interrogative

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

Negative - Interrogative

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

PRESENT CONTINUOUS

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

SIMPLE PAST

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

PRESENT PERFECT

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

PAST CONTINUOUS

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

PRESENT PERFECT CONTINUOUS

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

PAST PERFECT

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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

PAST PERFECT CONTINUOUS

Affirmative

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

Negative

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

Interrogative

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

Negative - Interrogative

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