English verb conjugation
COULD DIALYZE

Regular verb: dialyze - dialyzed - dialyzed

Affirmation

Simple form	V-ing form
I could dialyze you could dialyze he could dialyze we could dialyze you could dialyze they could dialyze	I could be dialyzing you could be dialyzing he could be dialyzing we could be dialyzing you could be dialyzing they could be dialyzing
Perfect	V-ing perfect
I could have dialyzed you could have dialyzed he could have dialyzed we could have dialyzed you could have dialyzed they could have dialyzed	I could have been dialyzing you could have been dialyzing he could have been dialyzing we could have been dialyzing you could have been dialyzing they could have been dialyzing

Negation

Simple form	V-ing form
I couldn't dialyze you couldn't dialyze he couldn't dialyze we couldn't dialyze you couldn't dialyze they couldn't dialyze	I couldn't be dialyzing you couldn't be dialyzing he couldn't be dialyzing we couldn't be dialyzing you couldn't be dialyzing they couldn't be dialyzing
Perfect	V-ing perfect
I couldn't have dialyzed you couldn't have dialyzed he couldn't have dialyzed we couldn't have dialyzed you couldn't have dialyzed they couldn't have dialyzed	I couldn't have been dialyzing you couldn't have been dialyzing he couldn't have been dialyzing we couldn't have been dialyzing you couldn't have been dialyzing they couldn't have been dialyzing

Interrogative form

Simple form	V-ing form
could I dialyze? could you dialyze? could he dialyze? could we dialyze? could you dialyze? could they dialyze?	could I be dialyzing? could you be dialyzing? could he be dialyzing? could we be dialyzing? could you be dialyzing? could they be dialyzing?
Perfect	V-ing perfect
could I have dialyzed? could you have dialyzed? could he have dialyzed? could we have dialyzed? could you have dialyzed? could they have dialyzed?	could I have been dialyzing? could you have been dialyzing? could he have been dialyzing? could we have been dialyzing? could you have been dialyzing? could they have been dialyzing?

Interro-negative form

Simple form	V-ing form
couldn't I dialyze? couldn't you dialyze? couldn't he dialyze? couldn't we dialyze? couldn't you dialyze? couldn't they dialyze?	couldn't I be dialyzing? couldn't you be dialyzing? couldn't he be dialyzing? couldn't we be dialyzing? couldn't you be dialyzing? couldn't they be dialyzing?
Perfect	V-ing perfect
couldn't I have dialyzed? couldn't you have dialyzed? couldn't he have dialyzed? couldn't we have dialyzed? couldn't you have dialyzed? couldn't they have dialyzed?	couldn't I have been dialyzing? couldn't you have been dialyzing? couldn't he have been dialyzing? couldn't we have been dialyzing? couldn't you have been dialyzing? couldn't they have been dialyzing?