SIMPLE PRESENT
Affirmative
- I toughen
- you toughen
- she/he/it toughens
- we toughen
- you toughen
- they toughen
Negative
- I do not toughen
- you do not toughen
- she/he/it does not toughen
- we do not toughen
- you do not toughen
- they do not toughen
Interrogative
- do I toughen ?
- do you toughen ?
- does she/he/it toughen ?
- do we toughen ?
- do you toughen ?
- do they toughen ?
Negative - Interrogative
- do I not toughen ?
- do you not toughen ?
- does she/he/it not toughen ?
- do we not toughen ?
- do you not toughen ?
- do they not toughen ?
PRESENT CONTINUOUS
Affirmative
- I am toughening
- you are toughening
- she/he/it is toughening
- we are toughening
- you are toughening
- they are toughening
Negative
- I am not toughening
- you are not toughening
- she/he/it is not toughening
- we are not toughening
- you are not toughening
- they are not toughening
Interrogative
- am I toughening ?
- are you toughening ?
- is she/he/it toughening ?
- are we toughening ?
- are you toughening ?
- are they toughening ?
Negative - Interrogative
- am I not toughening ?
- are you not toughening ?
- is she/he/it not toughening ?
- are we not toughening ?
- are you not toughening ?
- are they not toughening ?
SIMPLE PAST
Affirmative
- I toughened
- you toughened
- she/he/it toughened
- we toughened
- you toughened
- they toughened
Negative
- I did not toughen
- you did not toughen
- she/he/it did not toughen
- we did not toughen
- you did not toughen
- they did not toughen
Interrogative
- did I toughen ?
- did you toughen ?
- did she/he/it toughen ?
- did we toughen ?
- did you toughen ?
- did they toughen ?
Negative - Interrogative
- did I not toughen ?
- did you not toughen ?
- did she/he/it not toughen ?
- did we not toughen ?
- did you not toughen ?
- did they not toughen ?
PRESENT PERFECT
Affirmative
- I have toughened
- you have toughened
- she/he/it has toughened
- we have toughened
- you have toughened
- they have toughened
Negative
- I have not toughened
- you have not toughened
- she/he/it has not toughened
- we have not toughened
- you have not toughened
- they have not toughened
Interrogative
- have I toughened ?
- have you toughened ?
- has she/he/it toughened ?
- have we toughened ?
- have you toughened ?
- have they toughened ?
Negative - Interrogative
- have I not toughened ?
- have you not toughened ?
- has she/he/it not toughened ?
- have we not toughened ?
- have you not toughened ?
- have they not toughened ?
PAST CONTINUOUS
Affirmative
- I was toughening
- you were toughening
- she/he/it was toughening
- we were toughening
- you were toughening
- they were toughening
Negative
- I was not toughening
- you were not toughening
- she/he/it was not toughening
- you were not toughening
- you were not toughening
- they were not toughening
Interrogative
- was I toughening ?
- were you toughening ?
- was she/he/it toughening ?
- were we toughening ?
- were you toughening ?
- were they toughening ?
Negative - Interrogative
- was I not toughening ?
- were you not toughening ?
- was she/he/it not toughening ?
- were we not toughening ?
- were you not toughening ?
- were they not toughening ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been toughening
- you have been toughening
- she/he/it has been toughening
- we have been toughening
- you have been toughening
- they have been toughening
Negative
- I have not been toughening
- you have not been toughening
- she/he/it has not been toughening
- we have not been toughening
- you have not been toughening
- they have not been toughening
Interrogative
- have I been toughening ?
- have you been toughening ?
- has she/he/it been toughening ?
- have we been toughening ?
- have you been toughening ?
- have they been toughening ?
Negative - Interrogative
- have I not been toughening ?
- have you not been toughening ?
- has she/he/it not been toughening ?
- have we not been toughening ?
- have you not been toughening ?
- have they not been toughening ?
PAST PERFECT
Affirmative
- I had toughened
- you had toughened
- she/he/it had toughened
- we had toughened
- you had toughened
- they had toughened
Negative
- I had not toughened
- you had not toughened
- she/he/it had not toughened
- we had not toughened
- you had not toughened
- they had not toughened
Interrogative
- had I toughened ?
- had you toughened ?
- had she/he/it toughened ?
- had we toughened ?
- had you toughened ?
- had they toughened ?
Negative - Interrogative
- had I not toughened ?
- had you not toughened ?
- had she/he/it not toughened ?
- had we not toughened ?
- had you not toughened ?
- had they not toughened ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been toughening
- you had been toughening
- she/he/it had been toughening
- we had been toughening
- you had been toughening
- they had been toughening
Negative
- I had not been toughening
- you had not been toughening
- she/he/it had not been toughening
- we had not been toughening
- you had not been toughening
- they had not been toughening
Interrogative
- had I been toughening ?
- had you been toughening ?
- had she/he/it been toughening ?
- had we been toughening ?
- had you been toughening ?
- had they been toughening ?
Negative - Interrogative
- had I not been toughening ?
- had you not been toughening ?
- had she/he/it not been toughening ?
- had we not been toughening ?
- had you not been toughening ?
- had they not been toughening ?