English verb conjugation
COULD TING

Regular verb: ting - tinged - tinged

Affirmation

Simple form	V-ing form
I could ting you could ting she could ting we could ting you could ting they could ting	I could be tinging you could be tinging she could be tinging we could be tinging you could be tinging they could be tinging
Perfect	V-ing perfect
I could have tinged you could have tinged she could have tinged we could have tinged you could have tinged they could have tinged	I could have been tinging you could have been tinging she could have been tinging we could have been tinging you could have been tinging they could have been tinging

Negation

Simple form	V-ing form
I couldn't ting you couldn't ting she couldn't ting we couldn't ting you couldn't ting they couldn't ting	I couldn't be tinging you couldn't be tinging she couldn't be tinging we couldn't be tinging you couldn't be tinging they couldn't be tinging
Perfect	V-ing perfect
I couldn't have tinged you couldn't have tinged she couldn't have tinged we couldn't have tinged you couldn't have tinged they couldn't have tinged	I couldn't have been tinging you couldn't have been tinging she couldn't have been tinging we couldn't have been tinging you couldn't have been tinging they couldn't have been tinging

Interrogative form

Simple form	V-ing form
could I ting? could you ting? could she ting? could we ting? could you ting? could they ting?	could I be tinging? could you be tinging? could she be tinging? could we be tinging? could you be tinging? could they be tinging?
Perfect	V-ing perfect
could I have tinged? could you have tinged? could she have tinged? could we have tinged? could you have tinged? could they have tinged?	could I have been tinging? could you have been tinging? could she have been tinging? could we have been tinging? could you have been tinging? could they have been tinging?

Interro-negative form

Simple form	V-ing form
couldn't I ting? couldn't you ting? couldn't she ting? couldn't we ting? couldn't you ting? couldn't they ting?	couldn't I be tinging? couldn't you be tinging? couldn't she be tinging? couldn't we be tinging? couldn't you be tinging? couldn't they be tinging?
Perfect	V-ing perfect
couldn't I have tinged? couldn't you have tinged? couldn't she have tinged? couldn't we have tinged? couldn't you have tinged? couldn't they have tinged?	couldn't I have been tinging? couldn't you have been tinging? couldn't she have been tinging? couldn't we have been tinging? couldn't you have been tinging? couldn't they have been tinging?