SIMPLE PRESENT
Affirmative
- I ascertain
- you ascertain
- she/he/it ascertains
- we ascertain
- you ascertain
- they ascertain
Negative
- I do not ascertain
- you do not ascertain
- she/he/it does not ascertain
- we do not ascertain
- you do not ascertain
- they do not ascertain
Interrogative
- do I ascertain ?
- do you ascertain ?
- does she/he/it ascertain ?
- do we ascertain ?
- do you ascertain ?
- do they ascertain ?
Negative - Interrogative
- do I not ascertain ?
- do you not ascertain ?
- does she/he/it not ascertain ?
- do we not ascertain ?
- do you not ascertain ?
- do they not ascertain ?
PRESENT CONTINUOUS
Affirmative
- I am ascertaining
- you are ascertaining
- she/he/it is ascertaining
- we are ascertaining
- you are ascertaining
- they are ascertaining
Negative
- I am not ascertaining
- you are not ascertaining
- she/he/it is not ascertaining
- we are not ascertaining
- you are not ascertaining
- they are not ascertaining
Interrogative
- am I ascertaining ?
- are you ascertaining ?
- is she/he/it ascertaining ?
- are we ascertaining ?
- are you ascertaining ?
- are they ascertaining ?
Negative - Interrogative
- am I not ascertaining ?
- are you not ascertaining ?
- is she/he/it not ascertaining ?
- are we not ascertaining ?
- are you not ascertaining ?
- are they not ascertaining ?
SIMPLE PAST
Affirmative
- I ascertained
- you ascertained
- she/he/it ascertained
- we ascertained
- you ascertained
- they ascertained
Negative
- I did not ascertain
- you did not ascertain
- she/he/it did not ascertain
- we did not ascertain
- you did not ascertain
- they did not ascertain
Interrogative
- did I ascertain ?
- did you ascertain ?
- did she/he/it ascertain ?
- did we ascertain ?
- did you ascertain ?
- did they ascertain ?
Negative - Interrogative
- did I not ascertain ?
- did you not ascertain ?
- did she/he/it not ascertain ?
- did we not ascertain ?
- did you not ascertain ?
- did they not ascertain ?
PRESENT PERFECT
Affirmative
- I have ascertained
- you have ascertained
- she/he/it has ascertained
- we have ascertained
- you have ascertained
- they have ascertained
Negative
- I have not ascertained
- you have not ascertained
- she/he/it has not ascertained
- we have not ascertained
- you have not ascertained
- they have not ascertained
Interrogative
- have I ascertained ?
- have you ascertained ?
- has she/he/it ascertained ?
- have we ascertained ?
- have you ascertained ?
- have they ascertained ?
Negative - Interrogative
- have I not ascertained ?
- have you not ascertained ?
- has she/he/it not ascertained ?
- have we not ascertained ?
- have you not ascertained ?
- have they not ascertained ?
PAST CONTINUOUS
Affirmative
- I was ascertaining
- you were ascertaining
- she/he/it was ascertaining
- we were ascertaining
- you were ascertaining
- they were ascertaining
Negative
- I was not ascertaining
- you were not ascertaining
- she/he/it was not ascertaining
- you were not ascertaining
- you were not ascertaining
- they were not ascertaining
Interrogative
- was I ascertaining ?
- were you ascertaining ?
- was she/he/it ascertaining ?
- were we ascertaining ?
- were you ascertaining ?
- were they ascertaining ?
Negative - Interrogative
- was I not ascertaining ?
- were you not ascertaining ?
- was she/he/it not ascertaining ?
- were we not ascertaining ?
- were you not ascertaining ?
- were they not ascertaining ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been ascertaining
- you have been ascertaining
- she/he/it has been ascertaining
- we have been ascertaining
- you have been ascertaining
- they have been ascertaining
Negative
- I have not been ascertaining
- you have not been ascertaining
- she/he/it has not been ascertaining
- we have not been ascertaining
- you have not been ascertaining
- they have not been ascertaining
Interrogative
- have I been ascertaining ?
- have you been ascertaining ?
- has she/he/it been ascertaining ?
- have we been ascertaining ?
- have you been ascertaining ?
- have they been ascertaining ?
Negative - Interrogative
- have I not been ascertaining ?
- have you not been ascertaining ?
- has she/he/it not been ascertaining ?
- have we not been ascertaining ?
- have you not been ascertaining ?
- have they not been ascertaining ?
PAST PERFECT
Affirmative
- I had ascertained
- you had ascertained
- she/he/it had ascertained
- we had ascertained
- you had ascertained
- they had ascertained
Negative
- I had not ascertained
- you had not ascertained
- she/he/it had not ascertained
- we had not ascertained
- you had not ascertained
- they had not ascertained
Interrogative
- had I ascertained ?
- had you ascertained ?
- had she/he/it ascertained ?
- had we ascertained ?
- had you ascertained ?
- had they ascertained ?
Negative - Interrogative
- had I not ascertained ?
- had you not ascertained ?
- had she/he/it not ascertained ?
- had we not ascertained ?
- had you not ascertained ?
- had they not ascertained ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been ascertaining
- you had been ascertaining
- she/he/it had been ascertaining
- we had been ascertaining
- you had been ascertaining
- they had been ascertaining
Negative
- I had not been ascertaining
- you had not been ascertaining
- she/he/it had not been ascertaining
- we had not been ascertaining
- you had not been ascertaining
- they had not been ascertaining
Interrogative
- had I been ascertaining ?
- had you been ascertaining ?
- had she/he/it been ascertaining ?
- had we been ascertaining ?
- had you been ascertaining ?
- had they been ascertaining ?
Negative - Interrogative
- had I not been ascertaining ?
- had you not been ascertaining ?
- had she/he/it not been ascertaining ?
- had we not been ascertaining ?
- had you not been ascertaining ?
- had they not been ascertaining ?