SIMPLE PRESENT
Affirmative
- I certificate
- you certificate
- she/he/it certificates
- we certificate
- you certificate
- they certificate
Negative
- I do not certificate
- you do not certificate
- she/he/it does not certificate
- we do not certificate
- you do not certificate
- they do not certificate
Interrogative
- do I certificate ?
- do you certificate ?
- does she/he/it certificate ?
- do we certificate ?
- do you certificate ?
- do they certificate ?
Negative - Interrogative
- do I not certificate ?
- do you not certificate ?
- does she/he/it not certificate ?
- do we not certificate ?
- do you not certificate ?
- do they not certificate ?
PRESENT CONTINUOUS
Affirmative
- I am certificating
- you are certificating
- she/he/it is certificating
- we are certificating
- you are certificating
- they are certificating
Negative
- I am not certificating
- you are not certificating
- she/he/it is not certificating
- we are not certificating
- you are not certificating
- they are not certificating
Interrogative
- am I certificating ?
- are you certificating ?
- is she/he/it certificating ?
- are we certificating ?
- are you certificating ?
- are they certificating ?
Negative - Interrogative
- am I not certificating ?
- are you not certificating ?
- is she/he/it not certificating ?
- are we not certificating ?
- are you not certificating ?
- are they not certificating ?
SIMPLE PAST
Affirmative
- I certificated
- you certificated
- she/he/it certificated
- we certificated
- you certificated
- they certificated
Negative
- I did not certificate
- you did not certificate
- she/he/it did not certificate
- we did not certificate
- you did not certificate
- they did not certificate
Interrogative
- did I certificate ?
- did you certificate ?
- did she/he/it certificate ?
- did we certificate ?
- did you certificate ?
- did they certificate ?
Negative - Interrogative
- did I not certificate ?
- did you not certificate ?
- did she/he/it not certificate ?
- did we not certificate ?
- did you not certificate ?
- did they not certificate ?
PRESENT PERFECT
Affirmative
- I have certificated
- you have certificated
- she/he/it has certificated
- we have certificated
- you have certificated
- they have certificated
Negative
- I have not certificated
- you have not certificated
- she/he/it has not certificated
- we have not certificated
- you have not certificated
- they have not certificated
Interrogative
- have I certificated ?
- have you certificated ?
- has she/he/it certificated ?
- have we certificated ?
- have you certificated ?
- have they certificated ?
Negative - Interrogative
- have I not certificated ?
- have you not certificated ?
- has she/he/it not certificated ?
- have we not certificated ?
- have you not certificated ?
- have they not certificated ?
PAST CONTINUOUS
Affirmative
- I was certificating
- you were certificating
- she/he/it was certificating
- we were certificating
- you were certificating
- they were certificating
Negative
- I was not certificating
- you were not certificating
- she/he/it was not certificating
- you were not certificating
- you were not certificating
- they were not certificating
Interrogative
- was I certificating ?
- were you certificating ?
- was she/he/it certificating ?
- were we certificating ?
- were you certificating ?
- were they certificating ?
Negative - Interrogative
- was I not certificating ?
- were you not certificating ?
- was she/he/it not certificating ?
- were we not certificating ?
- were you not certificating ?
- were they not certificating ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been certificating
- you have been certificating
- she/he/it has been certificating
- we have been certificating
- you have been certificating
- they have been certificating
Negative
- I have not been certificating
- you have not been certificating
- she/he/it has not been certificating
- we have not been certificating
- you have not been certificating
- they have not been certificating
Interrogative
- have I been certificating ?
- have you been certificating ?
- has she/he/it been certificating ?
- have we been certificating ?
- have you been certificating ?
- have they been certificating ?
Negative - Interrogative
- have I not been certificating ?
- have you not been certificating ?
- has she/he/it not been certificating ?
- have we not been certificating ?
- have you not been certificating ?
- have they not been certificating ?
PAST PERFECT
Affirmative
- I had certificated
- you had certificated
- she/he/it had certificated
- we had certificated
- you had certificated
- they had certificated
Negative
- I had not certificated
- you had not certificated
- she/he/it had not certificated
- we had not certificated
- you had not certificated
- they had not certificated
Interrogative
- had I certificated ?
- had you certificated ?
- had she/he/it certificated ?
- had we certificated ?
- had you certificated ?
- had they certificated ?
Negative - Interrogative
- had I not certificated ?
- had you not certificated ?
- had she/he/it not certificated ?
- had we not certificated ?
- had you not certificated ?
- had they not certificated ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been certificating
- you had been certificating
- she/he/it had been certificating
- we had been certificating
- you had been certificating
- they had been certificating
Negative
- I had not been certificating
- you had not been certificating
- she/he/it had not been certificating
- we had not been certificating
- you had not been certificating
- they had not been certificating
Interrogative
- had I been certificating ?
- had you been certificating ?
- had she/he/it been certificating ?
- had we been certificating ?
- had you been certificating ?
- had they been certificating ?
Negative - Interrogative
- had I not been certificating ?
- had you not been certificating ?
- had she/he/it not been certificating ?
- had we not been certificating ?
- had you not been certificating ?
- had they not been certificating ?