SIMPLE PRESENT
Affirmative
- I desulfurize
- you desulfurize
- she/he/it desulfurizes
- we desulfurize
- you desulfurize
- they desulfurize
Negative
- I do not desulfurize
- you do not desulfurize
- she/he/it does not desulfurize
- we do not desulfurize
- you do not desulfurize
- they do not desulfurize
Interrogative
- do I desulfurize ?
- do you desulfurize ?
- does she/he/it desulfurize ?
- do we desulfurize ?
- do you desulfurize ?
- do they desulfurize ?
Negative - Interrogative
- do I not desulfurize ?
- do you not desulfurize ?
- does she/he/it not desulfurize ?
- do we not desulfurize ?
- do you not desulfurize ?
- do they not desulfurize ?
PRESENT CONTINUOUS
Affirmative
- I am desulfurizing
- you are desulfurizing
- she/he/it is desulfurizing
- we are desulfurizing
- you are desulfurizing
- they are desulfurizing
Negative
- I am not desulfurizing
- you are not desulfurizing
- she/he/it is not desulfurizing
- we are not desulfurizing
- you are not desulfurizing
- they are not desulfurizing
Interrogative
- am I desulfurizing ?
- are you desulfurizing ?
- is she/he/it desulfurizing ?
- are we desulfurizing ?
- are you desulfurizing ?
- are they desulfurizing ?
Negative - Interrogative
- am I not desulfurizing ?
- are you not desulfurizing ?
- is she/he/it not desulfurizing ?
- are we not desulfurizing ?
- are you not desulfurizing ?
- are they not desulfurizing ?
SIMPLE PAST
Affirmative
- I desulfurized
- you desulfurized
- she/he/it desulfurized
- we desulfurized
- you desulfurized
- they desulfurized
Negative
- I did not desulfurize
- you did not desulfurize
- she/he/it did not desulfurize
- we did not desulfurize
- you did not desulfurize
- they did not desulfurize
Interrogative
- did I desulfurize ?
- did you desulfurize ?
- did she/he/it desulfurize ?
- did we desulfurize ?
- did you desulfurize ?
- did they desulfurize ?
Negative - Interrogative
- did I not desulfurize ?
- did you not desulfurize ?
- did she/he/it not desulfurize ?
- did we not desulfurize ?
- did you not desulfurize ?
- did they not desulfurize ?
PRESENT PERFECT
Affirmative
- I have desulfurized
- you have desulfurized
- she/he/it has desulfurized
- we have desulfurized
- you have desulfurized
- they have desulfurized
Negative
- I have not desulfurized
- you have not desulfurized
- she/he/it has not desulfurized
- we have not desulfurized
- you have not desulfurized
- they have not desulfurized
Interrogative
- have I desulfurized ?
- have you desulfurized ?
- has she/he/it desulfurized ?
- have we desulfurized ?
- have you desulfurized ?
- have they desulfurized ?
Negative - Interrogative
- have I not desulfurized ?
- have you not desulfurized ?
- has she/he/it not desulfurized ?
- have we not desulfurized ?
- have you not desulfurized ?
- have they not desulfurized ?
PAST CONTINUOUS
Affirmative
- I was desulfurizing
- you were desulfurizing
- she/he/it was desulfurizing
- we were desulfurizing
- you were desulfurizing
- they were desulfurizing
Negative
- I was not desulfurizing
- you were not desulfurizing
- she/he/it was not desulfurizing
- you were not desulfurizing
- you were not desulfurizing
- they were not desulfurizing
Interrogative
- was I desulfurizing ?
- were you desulfurizing ?
- was she/he/it desulfurizing ?
- were we desulfurizing ?
- were you desulfurizing ?
- were they desulfurizing ?
Negative - Interrogative
- was I not desulfurizing ?
- were you not desulfurizing ?
- was she/he/it not desulfurizing ?
- were we not desulfurizing ?
- were you not desulfurizing ?
- were they not desulfurizing ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been desulfurizing
- you have been desulfurizing
- she/he/it has been desulfurizing
- we have been desulfurizing
- you have been desulfurizing
- they have been desulfurizing
Negative
- I have not been desulfurizing
- you have not been desulfurizing
- she/he/it has not been desulfurizing
- we have not been desulfurizing
- you have not been desulfurizing
- they have not been desulfurizing
Interrogative
- have I been desulfurizing ?
- have you been desulfurizing ?
- has she/he/it been desulfurizing ?
- have we been desulfurizing ?
- have you been desulfurizing ?
- have they been desulfurizing ?
Negative - Interrogative
- have I not been desulfurizing ?
- have you not been desulfurizing ?
- has she/he/it not been desulfurizing ?
- have we not been desulfurizing ?
- have you not been desulfurizing ?
- have they not been desulfurizing ?
PAST PERFECT
Affirmative
- I had desulfurized
- you had desulfurized
- she/he/it had desulfurized
- we had desulfurized
- you had desulfurized
- they had desulfurized
Negative
- I had not desulfurized
- you had not desulfurized
- she/he/it had not desulfurized
- we had not desulfurized
- you had not desulfurized
- they had not desulfurized
Interrogative
- had I desulfurized ?
- had you desulfurized ?
- had she/he/it desulfurized ?
- had we desulfurized ?
- had you desulfurized ?
- had they desulfurized ?
Negative - Interrogative
- had I not desulfurized ?
- had you not desulfurized ?
- had she/he/it not desulfurized ?
- had we not desulfurized ?
- had you not desulfurized ?
- had they not desulfurized ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been desulfurizing
- you had been desulfurizing
- she/he/it had been desulfurizing
- we had been desulfurizing
- you had been desulfurizing
- they had been desulfurizing
Negative
- I had not been desulfurizing
- you had not been desulfurizing
- she/he/it had not been desulfurizing
- we had not been desulfurizing
- you had not been desulfurizing
- they had not been desulfurizing
Interrogative
- had I been desulfurizing ?
- had you been desulfurizing ?
- had she/he/it been desulfurizing ?
- had we been desulfurizing ?
- had you been desulfurizing ?
- had they been desulfurizing ?
Negative - Interrogative
- had I not been desulfurizing ?
- had you not been desulfurizing ?
- had she/he/it not been desulfurizing ?
- had we not been desulfurizing ?
- had you not been desulfurizing ?
- had they not been desulfurizing ?