English verb conjugation
COULD DIALYZE

Regular verb: dialyze - dialyzed - dialyzed

Affirmation

Simple form	V-ing form
I could dialyze you could dialyze she could dialyze we could dialyze you could dialyze they could dialyze	I could be dialyzing you could be dialyzing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she dialyze? could we dialyze? could you dialyze? could they dialyze?	could I be dialyzing? could you be dialyzing? could she 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 she 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 she 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 she 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 she 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 she 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 she have been dialyzing? couldn't we have been dialyzing? couldn't you have been dialyzing? couldn't they have been dialyzing?