English verb conjugation
COULD DISINFECT

Regular verb: disinfect - disinfected - disinfected

Affirmation

Simple form	V-ing form
I could disinfect you could disinfect he could disinfect we could disinfect you could disinfect they could disinfect	I could be disinfecting you could be disinfecting he could be disinfecting we could be disinfecting you could be disinfecting they could be disinfecting
Perfect	V-ing perfect
I could have disinfected you could have disinfected he could have disinfected we could have disinfected you could have disinfected they could have disinfected	I could have been disinfecting you could have been disinfecting he could have been disinfecting we could have been disinfecting you could have been disinfecting they could have been disinfecting

Negation

Simple form	V-ing form
I couldn't disinfect you couldn't disinfect he couldn't disinfect we couldn't disinfect you couldn't disinfect they couldn't disinfect	I couldn't be disinfecting you couldn't be disinfecting he couldn't be disinfecting we couldn't be disinfecting you couldn't be disinfecting they couldn't be disinfecting
Perfect	V-ing perfect
I couldn't have disinfected you couldn't have disinfected he couldn't have disinfected we couldn't have disinfected you couldn't have disinfected they couldn't have disinfected	I couldn't have been disinfecting you couldn't have been disinfecting he couldn't have been disinfecting we couldn't have been disinfecting you couldn't have been disinfecting they couldn't have been disinfecting

Interrogative form

Simple form	V-ing form
could I disinfect? could you disinfect? could he disinfect? could we disinfect? could you disinfect? could they disinfect?	could I be disinfecting? could you be disinfecting? could he be disinfecting? could we be disinfecting? could you be disinfecting? could they be disinfecting?
Perfect	V-ing perfect
could I have disinfected? could you have disinfected? could he have disinfected? could we have disinfected? could you have disinfected? could they have disinfected?	could I have been disinfecting? could you have been disinfecting? could he have been disinfecting? could we have been disinfecting? could you have been disinfecting? could they have been disinfecting?

Interro-negative form

Simple form	V-ing form
couldn't I disinfect? couldn't you disinfect? couldn't he disinfect? couldn't we disinfect? couldn't you disinfect? couldn't they disinfect?	couldn't I be disinfecting? couldn't you be disinfecting? couldn't he be disinfecting? couldn't we be disinfecting? couldn't you be disinfecting? couldn't they be disinfecting?
Perfect	V-ing perfect
couldn't I have disinfected? couldn't you have disinfected? couldn't he have disinfected? couldn't we have disinfected? couldn't you have disinfected? couldn't they have disinfected?	couldn't I have been disinfecting? couldn't you have been disinfecting? couldn't he have been disinfecting? couldn't we have been disinfecting? couldn't you have been disinfecting? couldn't they have been disinfecting?