SIMPLE PRESENT
Affirmative
- I obstruct
- you obstruct
- she/he/it obstructs
- we obstruct
- you obstruct
- they obstruct
Negative
- I do not obstruct
- you do not obstruct
- she/he/it does not obstruct
- we do not obstruct
- you do not obstruct
- they do not obstruct
Interrogative
- do I obstruct ?
- do you obstruct ?
- does she/he/it obstruct ?
- do we obstruct ?
- do you obstruct ?
- do they obstruct ?
Negative - Interrogative
- do I not obstruct ?
- do you not obstruct ?
- does she/he/it not obstruct ?
- do we not obstruct ?
- do you not obstruct ?
- do they not obstruct ?
PRESENT CONTINUOUS
Affirmative
- I am obstructing
- you are obstructing
- she/he/it is obstructing
- we are obstructing
- you are obstructing
- they are obstructing
Negative
- I am not obstructing
- you are not obstructing
- she/he/it is not obstructing
- we are not obstructing
- you are not obstructing
- they are not obstructing
Interrogative
- am I obstructing ?
- are you obstructing ?
- is she/he/it obstructing ?
- are we obstructing ?
- are you obstructing ?
- are they obstructing ?
Negative - Interrogative
- am I not obstructing ?
- are you not obstructing ?
- is she/he/it not obstructing ?
- are we not obstructing ?
- are you not obstructing ?
- are they not obstructing ?
SIMPLE PAST
Affirmative
- I obstructed
- you obstructed
- she/he/it obstructed
- we obstructed
- you obstructed
- they obstructed
Negative
- I did not obstruct
- you did not obstruct
- she/he/it did not obstruct
- we did not obstruct
- you did not obstruct
- they did not obstruct
Interrogative
- did I obstruct ?
- did you obstruct ?
- did she/he/it obstruct ?
- did we obstruct ?
- did you obstruct ?
- did they obstruct ?
Negative - Interrogative
- did I not obstruct ?
- did you not obstruct ?
- did she/he/it not obstruct ?
- did we not obstruct ?
- did you not obstruct ?
- did they not obstruct ?
PRESENT PERFECT
Affirmative
- I have obstructed
- you have obstructed
- she/he/it has obstructed
- we have obstructed
- you have obstructed
- they have obstructed
Negative
- I have not obstructed
- you have not obstructed
- she/he/it has not obstructed
- we have not obstructed
- you have not obstructed
- they have not obstructed
Interrogative
- have I obstructed ?
- have you obstructed ?
- has she/he/it obstructed ?
- have we obstructed ?
- have you obstructed ?
- have they obstructed ?
Negative - Interrogative
- have I not obstructed ?
- have you not obstructed ?
- has she/he/it not obstructed ?
- have we not obstructed ?
- have you not obstructed ?
- have they not obstructed ?
PAST CONTINUOUS
Affirmative
- I was obstructing
- you were obstructing
- she/he/it was obstructing
- we were obstructing
- you were obstructing
- they were obstructing
Negative
- I was not obstructing
- you were not obstructing
- she/he/it was not obstructing
- you were not obstructing
- you were not obstructing
- they were not obstructing
Interrogative
- was I obstructing ?
- were you obstructing ?
- was she/he/it obstructing ?
- were we obstructing ?
- were you obstructing ?
- were they obstructing ?
Negative - Interrogative
- was I not obstructing ?
- were you not obstructing ?
- was she/he/it not obstructing ?
- were we not obstructing ?
- were you not obstructing ?
- were they not obstructing ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been obstructing
- you have been obstructing
- she/he/it has been obstructing
- we have been obstructing
- you have been obstructing
- they have been obstructing
Negative
- I have not been obstructing
- you have not been obstructing
- she/he/it has not been obstructing
- we have not been obstructing
- you have not been obstructing
- they have not been obstructing
Interrogative
- have I been obstructing ?
- have you been obstructing ?
- has she/he/it been obstructing ?
- have we been obstructing ?
- have you been obstructing ?
- have they been obstructing ?
Negative - Interrogative
- have I not been obstructing ?
- have you not been obstructing ?
- has she/he/it not been obstructing ?
- have we not been obstructing ?
- have you not been obstructing ?
- have they not been obstructing ?
PAST PERFECT
Affirmative
- I had obstructed
- you had obstructed
- she/he/it had obstructed
- we had obstructed
- you had obstructed
- they had obstructed
Negative
- I had not obstructed
- you had not obstructed
- she/he/it had not obstructed
- we had not obstructed
- you had not obstructed
- they had not obstructed
Interrogative
- had I obstructed ?
- had you obstructed ?
- had she/he/it obstructed ?
- had we obstructed ?
- had you obstructed ?
- had they obstructed ?
Negative - Interrogative
- had I not obstructed ?
- had you not obstructed ?
- had she/he/it not obstructed ?
- had we not obstructed ?
- had you not obstructed ?
- had they not obstructed ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been obstructing
- you had been obstructing
- she/he/it had been obstructing
- we had been obstructing
- you had been obstructing
- they had been obstructing
Negative
- I had not been obstructing
- you had not been obstructing
- she/he/it had not been obstructing
- we had not been obstructing
- you had not been obstructing
- they had not been obstructing
Interrogative
- had I been obstructing ?
- had you been obstructing ?
- had she/he/it been obstructing ?
- had we been obstructing ?
- had you been obstructing ?
- had they been obstructing ?
Negative - Interrogative
- had I not been obstructing ?
- had you not been obstructing ?
- had she/he/it not been obstructing ?
- had we not been obstructing ?
- had you not been obstructing ?
- had they not been obstructing ?