English verb conjugation
COULD TOUCH

Regular verb: touch - touched - touched

Affirmation

Simple form	V-ing form
I could touch you could touch she could touch we could touch you could touch they could touch	I could be touching you could be touching she could be touching we could be touching you could be touching they could be touching
Perfect	V-ing perfect
I could have touched you could have touched she could have touched we could have touched you could have touched they could have touched	I could have been touching you could have been touching she could have been touching we could have been touching you could have been touching they could have been touching

Negation

Simple form	V-ing form
I couldn't touch you couldn't touch she couldn't touch we couldn't touch you couldn't touch they couldn't touch	I couldn't be touching you couldn't be touching she couldn't be touching we couldn't be touching you couldn't be touching they couldn't be touching
Perfect	V-ing perfect
I couldn't have touched you couldn't have touched she couldn't have touched we couldn't have touched you couldn't have touched they couldn't have touched	I couldn't have been touching you couldn't have been touching she couldn't have been touching we couldn't have been touching you couldn't have been touching they couldn't have been touching

Interrogative form

Simple form	V-ing form
could I touch? could you touch? could she touch? could we touch? could you touch? could they touch?	could I be touching? could you be touching? could she be touching? could we be touching? could you be touching? could they be touching?
Perfect	V-ing perfect
could I have touched? could you have touched? could she have touched? could we have touched? could you have touched? could they have touched?	could I have been touching? could you have been touching? could she have been touching? could we have been touching? could you have been touching? could they have been touching?

Interro-negative form

Simple form	V-ing form
couldn't I touch? couldn't you touch? couldn't she touch? couldn't we touch? couldn't you touch? couldn't they touch?	couldn't I be touching? couldn't you be touching? couldn't she be touching? couldn't we be touching? couldn't you be touching? couldn't they be touching?
Perfect	V-ing perfect
couldn't I have touched? couldn't you have touched? couldn't she have touched? couldn't we have touched? couldn't you have touched? couldn't they have touched?	couldn't I have been touching? couldn't you have been touching? couldn't she have been touching? couldn't we have been touching? couldn't you have been touching? couldn't they have been touching?