English verb conjugation
COULD PASTEURIZE

Regular verb: pasteurize - pasteurized - pasteurized

Affirmation

Simple form	V-ing form
I could pasteurize you could pasteurize he could pasteurize we could pasteurize you could pasteurize they could pasteurize	I could be pasteurizing you could be pasteurizing he could be pasteurizing we could be pasteurizing you could be pasteurizing they could be pasteurizing
Perfect	V-ing perfect
I could have pasteurized you could have pasteurized he could have pasteurized we could have pasteurized you could have pasteurized they could have pasteurized	I could have been pasteurizing you could have been pasteurizing he could have been pasteurizing we could have been pasteurizing you could have been pasteurizing they could have been pasteurizing

Negation

Simple form	V-ing form
I couldn't pasteurize you couldn't pasteurize he couldn't pasteurize we couldn't pasteurize you couldn't pasteurize they couldn't pasteurize	I couldn't be pasteurizing you couldn't be pasteurizing he couldn't be pasteurizing we couldn't be pasteurizing you couldn't be pasteurizing they couldn't be pasteurizing
Perfect	V-ing perfect
I couldn't have pasteurized you couldn't have pasteurized he couldn't have pasteurized we couldn't have pasteurized you couldn't have pasteurized they couldn't have pasteurized	I couldn't have been pasteurizing you couldn't have been pasteurizing he couldn't have been pasteurizing we couldn't have been pasteurizing you couldn't have been pasteurizing they couldn't have been pasteurizing

Interrogative form

Simple form	V-ing form
could I pasteurize? could you pasteurize? could he pasteurize? could we pasteurize? could you pasteurize? could they pasteurize?	could I be pasteurizing? could you be pasteurizing? could he be pasteurizing? could we be pasteurizing? could you be pasteurizing? could they be pasteurizing?
Perfect	V-ing perfect
could I have pasteurized? could you have pasteurized? could he have pasteurized? could we have pasteurized? could you have pasteurized? could they have pasteurized?	could I have been pasteurizing? could you have been pasteurizing? could he have been pasteurizing? could we have been pasteurizing? could you have been pasteurizing? could they have been pasteurizing?

Interro-negative form

Simple form	V-ing form
couldn't I pasteurize? couldn't you pasteurize? couldn't he pasteurize? couldn't we pasteurize? couldn't you pasteurize? couldn't they pasteurize?	couldn't I be pasteurizing? couldn't you be pasteurizing? couldn't he be pasteurizing? couldn't we be pasteurizing? couldn't you be pasteurizing? couldn't they be pasteurizing?
Perfect	V-ing perfect
couldn't I have pasteurized? couldn't you have pasteurized? couldn't he have pasteurized? couldn't we have pasteurized? couldn't you have pasteurized? couldn't they have pasteurized?	couldn't I have been pasteurizing? couldn't you have been pasteurizing? couldn't he have been pasteurizing? couldn't we have been pasteurizing? couldn't you have been pasteurizing? couldn't they have been pasteurizing?