English verb conjugation
COULD SHATTER

Regular verb: shatter - shattered - shattered

Affirmation

Simple form	V-ing form
I could shatter you could shatter he could shatter we could shatter you could shatter they could shatter	I could be shattering you could be shattering he could be shattering we could be shattering you could be shattering they could be shattering
Perfect	V-ing perfect
I could have shattered you could have shattered he could have shattered we could have shattered you could have shattered they could have shattered	I could have been shattering you could have been shattering he could have been shattering we could have been shattering you could have been shattering they could have been shattering

Negation

Simple form	V-ing form
I couldn't shatter you couldn't shatter he couldn't shatter we couldn't shatter you couldn't shatter they couldn't shatter	I couldn't be shattering you couldn't be shattering he couldn't be shattering we couldn't be shattering you couldn't be shattering they couldn't be shattering
Perfect	V-ing perfect
I couldn't have shattered you couldn't have shattered he couldn't have shattered we couldn't have shattered you couldn't have shattered they couldn't have shattered	I couldn't have been shattering you couldn't have been shattering he couldn't have been shattering we couldn't have been shattering you couldn't have been shattering they couldn't have been shattering

Interrogative form

Simple form	V-ing form
could I shatter? could you shatter? could he shatter? could we shatter? could you shatter? could they shatter?	could I be shattering? could you be shattering? could he be shattering? could we be shattering? could you be shattering? could they be shattering?
Perfect	V-ing perfect
could I have shattered? could you have shattered? could he have shattered? could we have shattered? could you have shattered? could they have shattered?	could I have been shattering? could you have been shattering? could he have been shattering? could we have been shattering? could you have been shattering? could they have been shattering?

Interro-negative form

Simple form	V-ing form
couldn't I shatter? couldn't you shatter? couldn't he shatter? couldn't we shatter? couldn't you shatter? couldn't they shatter?	couldn't I be shattering? couldn't you be shattering? couldn't he be shattering? couldn't we be shattering? couldn't you be shattering? couldn't they be shattering?
Perfect	V-ing perfect
couldn't I have shattered? couldn't you have shattered? couldn't he have shattered? couldn't we have shattered? couldn't you have shattered? couldn't they have shattered?	couldn't I have been shattering? couldn't you have been shattering? couldn't he have been shattering? couldn't we have been shattering? couldn't you have been shattering? couldn't they have been shattering?