SIMPLE PRESENT
Affirmative
- I knock down
- you knock down
- she/he/it knocks down
- we knock down
- you knock down
- they knock down
Negative
- I do not knock down
- you do not knock down
- she/he/it does not knock down
- we do not knock down
- you do not knock down
- they do not knock down
Interrogative
- do I knock down ?
- do you knock down ?
- does she/he/it knock down ?
- do we knock down ?
- do you knock down ?
- do they knock down ?
Negative - Interrogative
- do I not knock down ?
- do you not knock down ?
- does she/he/it not knock down ?
- do we not knock down ?
- do you not knock down ?
- do they not knock down ?
PRESENT CONTINUOUS
Affirmative
- I am knocking down
- you are knocking down
- she/he/it is knocking down
- we are knocking down
- you are knocking down
- they are knocking down
Negative
- I am not knocking down
- you are not knocking down
- she/he/it is not knocking down
- we are not knocking down
- you are not knocking down
- they are not knocking down
Interrogative
- am I knocking down ?
- are you knocking down ?
- is she/he/it knocking down ?
- are we knocking down ?
- are you knocking down ?
- are they knocking down ?
Negative - Interrogative
- am I not knocking down ?
- are you not knocking down ?
- is she/he/it not knocking down ?
- are we not knocking down ?
- are you not knocking down ?
- are they not knocking down ?
SIMPLE PAST
Affirmative
- I knocked down
- you knocked down
- she/he/it knocked down
- we knocked down
- you knocked down
- they knocked down
Negative
- I did not knock down
- you did not knock down
- she/he/it did not knock down
- we did not knock down
- you did not knock down
- they did not knock down
Interrogative
- did I knock down ?
- did you knock down ?
- did she/he/it knock down ?
- did we knock down ?
- did you knock down ?
- did they knock down ?
Negative - Interrogative
- did I not knock down ?
- did you not knock down ?
- did she/he/it not knock down ?
- did we not knock down ?
- did you not knock down ?
- did they not knock down ?
PRESENT PERFECT
Affirmative
- I have knocked down
- you have knocked down
- she/he/it has knocked down
- we have knocked down
- you have knocked down
- they have knocked down
Negative
- I have not knocked down
- you have not knocked down
- she/he/it has not knocked down
- we have not knocked down
- you have not knocked down
- they have not knocked down
Interrogative
- have I knocked down ?
- have you knocked down ?
- has she/he/it knocked down ?
- have we knocked down ?
- have you knocked down ?
- have they knocked down ?
Negative - Interrogative
- have I not knocked down ?
- have you not knocked down ?
- has she/he/it not knocked down ?
- have we not knocked down ?
- have you not knocked down ?
- have they not knocked down ?
PAST CONTINUOUS
Affirmative
- I was knocking down
- you were knocking down
- she/he/it was knocking down
- we were knocking down
- you were knocking down
- they were knocking down
Negative
- I was not knocking down
- you were not knocking down
- she/he/it was not knocking down
- you were not knocking down
- you were not knocking down
- they were not knocking down
Interrogative
- was I knocking down ?
- were you knocking down ?
- was she/he/it knocking down ?
- were we knocking down ?
- were you knocking down ?
- were they knocking down ?
Negative - Interrogative
- was I not knocking down ?
- were you not knocking down ?
- was she/he/it not knocking down ?
- were we not knocking down ?
- were you not knocking down ?
- were they not knocking down ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been knocking down
- you have been knocking down
- she/he/it has been knocking down
- we have been knocking down
- you have been knocking down
- they have been knocking down
Negative
- I have not been knocking down
- you have not been knocking down
- she/he/it has not been knocking down
- we have not been knocking down
- you have not been knocking down
- they have not been knocking down
Interrogative
- have I been knocking down ?
- have you been knocking down ?
- has she/he/it been knocking down ?
- have we been knocking down ?
- have you been knocking down ?
- have they been knocking down ?
Negative - Interrogative
- have I not been knocking down ?
- have you not been knocking down ?
- has she/he/it not been knocking down ?
- have we not been knocking down ?
- have you not been knocking down ?
- have they not been knocking down ?
PAST PERFECT
Affirmative
- I had knocked down
- you had knocked down
- she/he/it had knocked down
- we had knocked down
- you had knocked down
- they had knocked down
Negative
- I had not knocked down
- you had not knocked down
- she/he/it had not knocked down
- we had not knocked down
- you had not knocked down
- they had not knocked down
Interrogative
- had I knocked down ?
- had you knocked down ?
- had she/he/it knocked down ?
- had we knocked down ?
- had you knocked down ?
- had they knocked down ?
Negative - Interrogative
- had I not knocked down ?
- had you not knocked down ?
- had she/he/it not knocked down ?
- had we not knocked down ?
- had you not knocked down ?
- had they not knocked down ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been knocking down
- you had been knocking down
- she/he/it had been knocking down
- we had been knocking down
- you had been knocking down
- they had been knocking down
Negative
- I had not been knocking down
- you had not been knocking down
- she/he/it had not been knocking down
- we had not been knocking down
- you had not been knocking down
- they had not been knocking down
Interrogative
- had I been knocking down ?
- had you been knocking down ?
- had she/he/it been knocking down ?
- had we been knocking down ?
- had you been knocking down ?
- had they been knocking down ?
Negative - Interrogative
- had I not been knocking down ?
- had you not been knocking down ?
- had she/he/it not been knocking down ?
- had we not been knocking down ?
- had you not been knocking down ?
- had they not been knocking down ?