SIMPLE PRESENT
Affirmative
- I back
- you back
- she/he/it backs
- we back
- you back
- they back
Negative
- I do not back
- you do not back
- she/he/it does not back
- we do not back
- you do not back
- they do not back
Interrogative
- do I back ?
- do you back ?
- does she/he/it back ?
- do we back ?
- do you back ?
- do they back ?
Negative - Interrogative
- do I not back ?
- do you not back ?
- does she/he/it not back ?
- do we not back ?
- do you not back ?
- do they not back ?
PRESENT CONTINUOUS
Affirmative
- I am backing
- you are backing
- she/he/it is backing
- we are backing
- you are backing
- they are backing
Negative
- I am not backing
- you are not backing
- she/he/it is not backing
- we are not backing
- you are not backing
- they are not backing
Interrogative
- am I backing ?
- are you backing ?
- is she/he/it backing ?
- are we backing ?
- are you backing ?
- are they backing ?
Negative - Interrogative
- am I not backing ?
- are you not backing ?
- is she/he/it not backing ?
- are we not backing ?
- are you not backing ?
- are they not backing ?
SIMPLE PAST
Affirmative
- I backed
- you backed
- she/he/it backed
- we backed
- you backed
- they backed
Negative
- I did not back
- you did not back
- she/he/it did not back
- we did not back
- you did not back
- they did not back
Interrogative
- did I back ?
- did you back ?
- did she/he/it back ?
- did we back ?
- did you back ?
- did they back ?
Negative - Interrogative
- did I not back ?
- did you not back ?
- did she/he/it not back ?
- did we not back ?
- did you not back ?
- did they not back ?
PRESENT PERFECT
Affirmative
- I have backed
- you have backed
- she/he/it has backed
- we have backed
- you have backed
- they have backed
Negative
- I have not backed
- you have not backed
- she/he/it has not backed
- we have not backed
- you have not backed
- they have not backed
Interrogative
- have I backed ?
- have you backed ?
- has she/he/it backed ?
- have we backed ?
- have you backed ?
- have they backed ?
Negative - Interrogative
- have I not backed ?
- have you not backed ?
- has she/he/it not backed ?
- have we not backed ?
- have you not backed ?
- have they not backed ?
PAST CONTINUOUS
Affirmative
- I was backing
- you were backing
- she/he/it was backing
- we were backing
- you were backing
- they were backing
Negative
- I was not backing
- you were not backing
- she/he/it was not backing
- you were not backing
- you were not backing
- they were not backing
Interrogative
- was I backing ?
- were you backing ?
- was she/he/it backing ?
- were we backing ?
- were you backing ?
- were they backing ?
Negative - Interrogative
- was I not backing ?
- were you not backing ?
- was she/he/it not backing ?
- were we not backing ?
- were you not backing ?
- were they not backing ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been backing
- you have been backing
- she/he/it has been backing
- we have been backing
- you have been backing
- they have been backing
Negative
- I have not been backing
- you have not been backing
- she/he/it has not been backing
- we have not been backing
- you have not been backing
- they have not been backing
Interrogative
- have I been backing ?
- have you been backing ?
- has she/he/it been backing ?
- have we been backing ?
- have you been backing ?
- have they been backing ?
Negative - Interrogative
- have I not been backing ?
- have you not been backing ?
- has she/he/it not been backing ?
- have we not been backing ?
- have you not been backing ?
- have they not been backing ?
PAST PERFECT
Affirmative
- I had backed
- you had backed
- she/he/it had backed
- we had backed
- you had backed
- they had backed
Negative
- I had not backed
- you had not backed
- she/he/it had not backed
- we had not backed
- you had not backed
- they had not backed
Interrogative
- had I backed ?
- had you backed ?
- had she/he/it backed ?
- had we backed ?
- had you backed ?
- had they backed ?
Negative - Interrogative
- had I not backed ?
- had you not backed ?
- had she/he/it not backed ?
- had we not backed ?
- had you not backed ?
- had they not backed ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been backing
- you had been backing
- she/he/it had been backing
- we had been backing
- you had been backing
- they had been backing
Negative
- I had not been backing
- you had not been backing
- she/he/it had not been backing
- we had not been backing
- you had not been backing
- they had not been backing
Interrogative
- had I been backing ?
- had you been backing ?
- had she/he/it been backing ?
- had we been backing ?
- had you been backing ?
- had they been backing ?
Negative - Interrogative
- had I not been backing ?
- had you not been backing ?
- had she/he/it not been backing ?
- had we not been backing ?
- had you not been backing ?
- had they not been backing ?