English verb conjugation
COULD HEAL

Regular verb: heal - healed - healed

Affirmation

Simple form	V-ing form
I could heal you could heal she could heal we could heal you could heal they could heal	I could be healing you could be healing she could be healing we could be healing you could be healing they could be healing
Perfect	V-ing perfect
I could have healed you could have healed she could have healed we could have healed you could have healed they could have healed	I could have been healing you could have been healing she could have been healing we could have been healing you could have been healing they could have been healing

Negation

Simple form	V-ing form
I couldn't heal you couldn't heal she couldn't heal we couldn't heal you couldn't heal they couldn't heal	I couldn't be healing you couldn't be healing she couldn't be healing we couldn't be healing you couldn't be healing they couldn't be healing
Perfect	V-ing perfect
I couldn't have healed you couldn't have healed she couldn't have healed we couldn't have healed you couldn't have healed they couldn't have healed	I couldn't have been healing you couldn't have been healing she couldn't have been healing we couldn't have been healing you couldn't have been healing they couldn't have been healing

Interrogative form

Simple form	V-ing form
could I heal? could you heal? could she heal? could we heal? could you heal? could they heal?	could I be healing? could you be healing? could she be healing? could we be healing? could you be healing? could they be healing?
Perfect	V-ing perfect
could I have healed? could you have healed? could she have healed? could we have healed? could you have healed? could they have healed?	could I have been healing? could you have been healing? could she have been healing? could we have been healing? could you have been healing? could they have been healing?

Interro-negative form

Simple form	V-ing form
couldn't I heal? couldn't you heal? couldn't she heal? couldn't we heal? couldn't you heal? couldn't they heal?	couldn't I be healing? couldn't you be healing? couldn't she be healing? couldn't we be healing? couldn't you be healing? couldn't they be healing?
Perfect	V-ing perfect
couldn't I have healed? couldn't you have healed? couldn't she have healed? couldn't we have healed? couldn't you have healed? couldn't they have healed?	couldn't I have been healing? couldn't you have been healing? couldn't she have been healing? couldn't we have been healing? couldn't you have been healing? couldn't they have been healing?