SIMPLE PRESENT
Affirmative
- I authenticate
- you authenticate
- she/he/it authenticates
- we authenticate
- you authenticate
- they authenticate
Negative
- I do not authenticate
- you do not authenticate
- she/he/it does not authenticate
- we do not authenticate
- you do not authenticate
- they do not authenticate
Interrogative
- do I authenticate ?
- do you authenticate ?
- does she/he/it authenticate ?
- do we authenticate ?
- do you authenticate ?
- do they authenticate ?
Negative - Interrogative
- do I not authenticate ?
- do you not authenticate ?
- does she/he/it not authenticate ?
- do we not authenticate ?
- do you not authenticate ?
- do they not authenticate ?
PRESENT CONTINUOUS
Affirmative
- I am authenticating
- you are authenticating
- she/he/it is authenticating
- we are authenticating
- you are authenticating
- they are authenticating
Negative
- I am not authenticating
- you are not authenticating
- she/he/it is not authenticating
- we are not authenticating
- you are not authenticating
- they are not authenticating
Interrogative
- am I authenticating ?
- are you authenticating ?
- is she/he/it authenticating ?
- are we authenticating ?
- are you authenticating ?
- are they authenticating ?
Negative - Interrogative
- am I not authenticating ?
- are you not authenticating ?
- is she/he/it not authenticating ?
- are we not authenticating ?
- are you not authenticating ?
- are they not authenticating ?
SIMPLE PAST
Affirmative
- I authenticated
- you authenticated
- she/he/it authenticated
- we authenticated
- you authenticated
- they authenticated
Negative
- I did not authenticate
- you did not authenticate
- she/he/it did not authenticate
- we did not authenticate
- you did not authenticate
- they did not authenticate
Interrogative
- did I authenticate ?
- did you authenticate ?
- did she/he/it authenticate ?
- did we authenticate ?
- did you authenticate ?
- did they authenticate ?
Negative - Interrogative
- did I not authenticate ?
- did you not authenticate ?
- did she/he/it not authenticate ?
- did we not authenticate ?
- did you not authenticate ?
- did they not authenticate ?
PRESENT PERFECT
Affirmative
- I have authenticated
- you have authenticated
- she/he/it has authenticated
- we have authenticated
- you have authenticated
- they have authenticated
Negative
- I have not authenticated
- you have not authenticated
- she/he/it has not authenticated
- we have not authenticated
- you have not authenticated
- they have not authenticated
Interrogative
- have I authenticated ?
- have you authenticated ?
- has she/he/it authenticated ?
- have we authenticated ?
- have you authenticated ?
- have they authenticated ?
Negative - Interrogative
- have I not authenticated ?
- have you not authenticated ?
- has she/he/it not authenticated ?
- have we not authenticated ?
- have you not authenticated ?
- have they not authenticated ?
PAST CONTINUOUS
Affirmative
- I was authenticating
- you were authenticating
- she/he/it was authenticating
- we were authenticating
- you were authenticating
- they were authenticating
Negative
- I was not authenticating
- you were not authenticating
- she/he/it was not authenticating
- you were not authenticating
- you were not authenticating
- they were not authenticating
Interrogative
- was I authenticating ?
- were you authenticating ?
- was she/he/it authenticating ?
- were we authenticating ?
- were you authenticating ?
- were they authenticating ?
Negative - Interrogative
- was I not authenticating ?
- were you not authenticating ?
- was she/he/it not authenticating ?
- were we not authenticating ?
- were you not authenticating ?
- were they not authenticating ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been authenticating
- you have been authenticating
- she/he/it has been authenticating
- we have been authenticating
- you have been authenticating
- they have been authenticating
Negative
- I have not been authenticating
- you have not been authenticating
- she/he/it has not been authenticating
- we have not been authenticating
- you have not been authenticating
- they have not been authenticating
Interrogative
- have I been authenticating ?
- have you been authenticating ?
- has she/he/it been authenticating ?
- have we been authenticating ?
- have you been authenticating ?
- have they been authenticating ?
Negative - Interrogative
- have I not been authenticating ?
- have you not been authenticating ?
- has she/he/it not been authenticating ?
- have we not been authenticating ?
- have you not been authenticating ?
- have they not been authenticating ?
PAST PERFECT
Affirmative
- I had authenticated
- you had authenticated
- she/he/it had authenticated
- we had authenticated
- you had authenticated
- they had authenticated
Negative
- I had not authenticated
- you had not authenticated
- she/he/it had not authenticated
- we had not authenticated
- you had not authenticated
- they had not authenticated
Interrogative
- had I authenticated ?
- had you authenticated ?
- had she/he/it authenticated ?
- had we authenticated ?
- had you authenticated ?
- had they authenticated ?
Negative - Interrogative
- had I not authenticated ?
- had you not authenticated ?
- had she/he/it not authenticated ?
- had we not authenticated ?
- had you not authenticated ?
- had they not authenticated ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been authenticating
- you had been authenticating
- she/he/it had been authenticating
- we had been authenticating
- you had been authenticating
- they had been authenticating
Negative
- I had not been authenticating
- you had not been authenticating
- she/he/it had not been authenticating
- we had not been authenticating
- you had not been authenticating
- they had not been authenticating
Interrogative
- had I been authenticating ?
- had you been authenticating ?
- had she/he/it been authenticating ?
- had we been authenticating ?
- had you been authenticating ?
- had they been authenticating ?
Negative - Interrogative
- had I not been authenticating ?
- had you not been authenticating ?
- had she/he/it not been authenticating ?
- had we not been authenticating ?
- had you not been authenticating ?
- had they not been authenticating ?