SIMPLE PRESENT
Affirmative
- I invoice
- you invoice
- she/he/it invoices
- we invoice
- you invoice
- they invoice
Negative
- I do not invoice
- you do not invoice
- she/he/it does not invoice
- we do not invoice
- you do not invoice
- they do not invoice
Interrogative
- do I invoice ?
- do you invoice ?
- does she/he/it invoice ?
- do we invoice ?
- do you invoice ?
- do they invoice ?
Negative - Interrogative
- do I not invoice ?
- do you not invoice ?
- does she/he/it not invoice ?
- do we not invoice ?
- do you not invoice ?
- do they not invoice ?
PRESENT CONTINUOUS
Affirmative
- I am invoicing
- you are invoicing
- she/he/it is invoicing
- we are invoicing
- you are invoicing
- they are invoicing
Negative
- I am not invoicing
- you are not invoicing
- she/he/it is not invoicing
- we are not invoicing
- you are not invoicing
- they are not invoicing
Interrogative
- am I invoicing ?
- are you invoicing ?
- is she/he/it invoicing ?
- are we invoicing ?
- are you invoicing ?
- are they invoicing ?
Negative - Interrogative
- am I not invoicing ?
- are you not invoicing ?
- is she/he/it not invoicing ?
- are we not invoicing ?
- are you not invoicing ?
- are they not invoicing ?
SIMPLE PAST
Affirmative
- I invoiced
- you invoiced
- she/he/it invoiced
- we invoiced
- you invoiced
- they invoiced
Negative
- I did not invoice
- you did not invoice
- she/he/it did not invoice
- we did not invoice
- you did not invoice
- they did not invoice
Interrogative
- did I invoice ?
- did you invoice ?
- did she/he/it invoice ?
- did we invoice ?
- did you invoice ?
- did they invoice ?
Negative - Interrogative
- did I not invoice ?
- did you not invoice ?
- did she/he/it not invoice ?
- did we not invoice ?
- did you not invoice ?
- did they not invoice ?
PRESENT PERFECT
Affirmative
- I have invoiced
- you have invoiced
- she/he/it has invoiced
- we have invoiced
- you have invoiced
- they have invoiced
Negative
- I have not invoiced
- you have not invoiced
- she/he/it has not invoiced
- we have not invoiced
- you have not invoiced
- they have not invoiced
Interrogative
- have I invoiced ?
- have you invoiced ?
- has she/he/it invoiced ?
- have we invoiced ?
- have you invoiced ?
- have they invoiced ?
Negative - Interrogative
- have I not invoiced ?
- have you not invoiced ?
- has she/he/it not invoiced ?
- have we not invoiced ?
- have you not invoiced ?
- have they not invoiced ?
PAST CONTINUOUS
Affirmative
- I was invoicing
- you were invoicing
- she/he/it was invoicing
- we were invoicing
- you were invoicing
- they were invoicing
Negative
- I was not invoicing
- you were not invoicing
- she/he/it was not invoicing
- you were not invoicing
- you were not invoicing
- they were not invoicing
Interrogative
- was I invoicing ?
- were you invoicing ?
- was she/he/it invoicing ?
- were we invoicing ?
- were you invoicing ?
- were they invoicing ?
Negative - Interrogative
- was I not invoicing ?
- were you not invoicing ?
- was she/he/it not invoicing ?
- were we not invoicing ?
- were you not invoicing ?
- were they not invoicing ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been invoicing
- you have been invoicing
- she/he/it has been invoicing
- we have been invoicing
- you have been invoicing
- they have been invoicing
Negative
- I have not been invoicing
- you have not been invoicing
- she/he/it has not been invoicing
- we have not been invoicing
- you have not been invoicing
- they have not been invoicing
Interrogative
- have I been invoicing ?
- have you been invoicing ?
- has she/he/it been invoicing ?
- have we been invoicing ?
- have you been invoicing ?
- have they been invoicing ?
Negative - Interrogative
- have I not been invoicing ?
- have you not been invoicing ?
- has she/he/it not been invoicing ?
- have we not been invoicing ?
- have you not been invoicing ?
- have they not been invoicing ?
PAST PERFECT
Affirmative
- I had invoiced
- you had invoiced
- she/he/it had invoiced
- we had invoiced
- you had invoiced
- they had invoiced
Negative
- I had not invoiced
- you had not invoiced
- she/he/it had not invoiced
- we had not invoiced
- you had not invoiced
- they had not invoiced
Interrogative
- had I invoiced ?
- had you invoiced ?
- had she/he/it invoiced ?
- had we invoiced ?
- had you invoiced ?
- had they invoiced ?
Negative - Interrogative
- had I not invoiced ?
- had you not invoiced ?
- had she/he/it not invoiced ?
- had we not invoiced ?
- had you not invoiced ?
- had they not invoiced ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been invoicing
- you had been invoicing
- she/he/it had been invoicing
- we had been invoicing
- you had been invoicing
- they had been invoicing
Negative
- I had not been invoicing
- you had not been invoicing
- she/he/it had not been invoicing
- we had not been invoicing
- you had not been invoicing
- they had not been invoicing
Interrogative
- had I been invoicing ?
- had you been invoicing ?
- had she/he/it been invoicing ?
- had we been invoicing ?
- had you been invoicing ?
- had they been invoicing ?
Negative - Interrogative
- had I not been invoicing ?
- had you not been invoicing ?
- had she/he/it not been invoicing ?
- had we not been invoicing ?
- had you not been invoicing ?
- had they not been invoicing ?