English verb conjugation
SHOULD FAX

Regular verb: fax - faxed - faxed

Affirmation

Simple form	V-ing form
I'd fax you'd fax he'd fax we'd fax you'd fax they'd fax	I'd be faxing you'd be faxing he'd be faxing we'd be faxing you'd be faxing they'd be faxing
Perfect	V-ing perfect
I should've faxed you should've faxed he should've faxed we should've faxed you should've faxed they should've faxed	I should've been faxing you should've been faxing he should've been faxing we should've been faxing you should've been faxing they should've been faxing

Negation

Simple form	V-ing form
I shouldn't fax you shouldn't fax he shouldn't fax we shouldn't fax you shouldn't fax they shouldn't fax	I shouldn't be faxing you shouldn't be faxing he shouldn't be faxing we shouldn't be faxing you shouldn't be faxing they shouldn't be faxing
Perfect	V-ing perfect
I shouldn't have faxed you shouldn't have faxed he shouldn't have faxed we shouldn't have faxed you shouldn't have faxed they shouldn't have faxed	I shouldn't have been faxing you shouldn't have been faxing he shouldn't have been faxing we shouldn't have been faxing you shouldn't have been faxing they shouldn't have been faxing

Interrogative form

Simple form	V-ing form
should I fax? should you fax? should he fax? should we fax? should you fax? should they fax?	should I be faxing? should you be faxing? should he be faxing? should we be faxing? should you be faxing? should they be faxing?
Perfect	V-ing perfect
should I have faxed? should you have faxed? should he have faxed? should we have faxed? should you have faxed? should they have faxed?	should I have been faxing? should you have been faxing? should he have been faxing? should we have been faxing? should you have been faxing? should they have been faxing?

Interro-negative form

Simple form	V-ing form
shouldn't I fax? shouldn't you fax? shouldn't he fax? shouldn't we fax? shouldn't you fax? shouldn't they fax?	shouldn't I be faxing? shouldn't you be faxing? shouldn't he be faxing? shouldn't we be faxing? shouldn't you be faxing? shouldn't they be faxing?
Perfect	V-ing perfect
shouldn't I have faxed? shouldn't you have faxed? shouldn't he have faxed? shouldn't we have faxed? shouldn't you have faxed? shouldn't they have faxed?	shouldn't I have been faxing? shouldn't you have been faxing? shouldn't he have been faxing? shouldn't we have been faxing? shouldn't you have been faxing? shouldn't they have been faxing?