English verb conjugation
SHOULD FAX

Regular verb: fax - faxed - faxed

Affirmation

Simple form	V-ing form
I'd fax you'd fax she'd fax we'd fax you'd fax they'd fax	I'd be faxing you'd be faxing she'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 she 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 she 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 she 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 she 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 she 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 she 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 she fax? should we fax? should you fax? should they fax?	should I be faxing? should you be faxing? should she 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 she 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 she 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 she 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 she 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 she 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 she have been faxing? shouldn't we have been faxing? shouldn't you have been faxing? shouldn't they have been faxing?