SIMPLE PRESENT
Affirmative
- I refer to
- you refer to
- she/he/it refers to
- we refer to
- you refer to
- they refer to
Negative
- I do not refer to
- you do not refer to
- she/he/it does not refer to
- we do not refer to
- you do not refer to
- they do not refer to
Interrogative
- do I refer to ?
- do you refer to ?
- does she/he/it refer to ?
- do we refer to ?
- do you refer to ?
- do they refer to ?
Negative - Interrogative
- do I not refer to ?
- do you not refer to ?
- does she/he/it not refer to ?
- do we not refer to ?
- do you not refer to ?
- do they not refer to ?
PRESENT CONTINUOUS
Affirmative
- I am referring to
- you are referring to
- she/he/it is referring to
- we are referring to
- you are referring to
- they are referring to
Negative
- I am not referring to
- you are not referring to
- she/he/it is not referring to
- we are not referring to
- you are not referring to
- they are not referring to
Interrogative
- am I referring to ?
- are you referring to ?
- is she/he/it referring to ?
- are we referring to ?
- are you referring to ?
- are they referring to ?
Negative - Interrogative
- am I not referring to ?
- are you not referring to ?
- is she/he/it not referring to ?
- are we not referring to ?
- are you not referring to ?
- are they not referring to ?
SIMPLE PAST
Affirmative
- I referred to
- you referred to
- she/he/it referred to
- we referred to
- you referred to
- they referred to
Negative
- I did not refer to
- you did not refer to
- she/he/it did not refer to
- we did not refer to
- you did not refer to
- they did not refer to
Interrogative
- did I refer to ?
- did you refer to ?
- did she/he/it refer to ?
- did we refer to ?
- did you refer to ?
- did they refer to ?
Negative - Interrogative
- did I not refer to ?
- did you not refer to ?
- did she/he/it not refer to ?
- did we not refer to ?
- did you not refer to ?
- did they not refer to ?
PRESENT PERFECT
Affirmative
- I have referred to
- you have referred to
- she/he/it has referred to
- we have referred to
- you have referred to
- they have referred to
Negative
- I have not referred to
- you have not referred to
- she/he/it has not referred to
- we have not referred to
- you have not referred to
- they have not referred to
Interrogative
- have I referred to ?
- have you referred to ?
- has she/he/it referred to ?
- have we referred to ?
- have you referred to ?
- have they referred to ?
Negative - Interrogative
- have I not referred to ?
- have you not referred to ?
- has she/he/it not referred to ?
- have we not referred to ?
- have you not referred to ?
- have they not referred to ?
PAST CONTINUOUS
Affirmative
- I was referring to
- you were referring to
- she/he/it was referring to
- we were referring to
- you were referring to
- they were referring to
Negative
- I was not referring to
- you were not referring to
- she/he/it was not referring to
- you were not referring to
- you were not referring to
- they were not referring to
Interrogative
- was I referring to ?
- were you referring to ?
- was she/he/it referring to ?
- were we referring to ?
- were you referring to ?
- were they referring to ?
Negative - Interrogative
- was I not referring to ?
- were you not referring to ?
- was she/he/it not referring to ?
- were we not referring to ?
- were you not referring to ?
- were they not referring to ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been referring to
- you have been referring to
- she/he/it has been referring to
- we have been referring to
- you have been referring to
- they have been referring to
Negative
- I have not been referring to
- you have not been referring to
- she/he/it has not been referring to
- we have not been referring to
- you have not been referring to
- they have not been referring to
Interrogative
- have I been referring to ?
- have you been referring to ?
- has she/he/it been referring to ?
- have we been referring to ?
- have you been referring to ?
- have they been referring to ?
Negative - Interrogative
- have I not been referring to ?
- have you not been referring to ?
- has she/he/it not been referring to ?
- have we not been referring to ?
- have you not been referring to ?
- have they not been referring to ?
PAST PERFECT
Affirmative
- I had referred to
- you had referred to
- she/he/it had referred to
- we had referred to
- you had referred to
- they had referred to
Negative
- I had not referred to
- you had not referred to
- she/he/it had not referred to
- we had not referred to
- you had not referred to
- they had not referred to
Interrogative
- had I referred to ?
- had you referred to ?
- had she/he/it referred to ?
- had we referred to ?
- had you referred to ?
- had they referred to ?
Negative - Interrogative
- had I not referred to ?
- had you not referred to ?
- had she/he/it not referred to ?
- had we not referred to ?
- had you not referred to ?
- had they not referred to ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been referring to
- you had been referring to
- she/he/it had been referring to
- we had been referring to
- you had been referring to
- they had been referring to
Negative
- I had not been referring to
- you had not been referring to
- she/he/it had not been referring to
- we had not been referring to
- you had not been referring to
- they had not been referring to
Interrogative
- had I been referring to ?
- had you been referring to ?
- had she/he/it been referring to ?
- had we been referring to ?
- had you been referring to ?
- had they been referring to ?
Negative - Interrogative
- had I not been referring to ?
- had you not been referring to ?
- had she/he/it not been referring to ?
- had we not been referring to ?
- had you not been referring to ?
- had they not been referring to ?