English verb conjugation
COULD INCRUST

Regular verb: incrust - incrusted - incrusted

Affirmation

Simple form	V-ing form
I could incrust you could incrust she could incrust we could incrust you could incrust they could incrust	I could be incrusting you could be incrusting she could be incrusting we could be incrusting you could be incrusting they could be incrusting
Perfect	V-ing perfect
I could have incrusted you could have incrusted she could have incrusted we could have incrusted you could have incrusted they could have incrusted	I could have been incrusting you could have been incrusting she could have been incrusting we could have been incrusting you could have been incrusting they could have been incrusting

Negation

Simple form	V-ing form
I couldn't incrust you couldn't incrust she couldn't incrust we couldn't incrust you couldn't incrust they couldn't incrust	I couldn't be incrusting you couldn't be incrusting she couldn't be incrusting we couldn't be incrusting you couldn't be incrusting they couldn't be incrusting
Perfect	V-ing perfect
I couldn't have incrusted you couldn't have incrusted she couldn't have incrusted we couldn't have incrusted you couldn't have incrusted they couldn't have incrusted	I couldn't have been incrusting you couldn't have been incrusting she couldn't have been incrusting we couldn't have been incrusting you couldn't have been incrusting they couldn't have been incrusting

Interrogative form

Simple form	V-ing form
could I incrust? could you incrust? could she incrust? could we incrust? could you incrust? could they incrust?	could I be incrusting? could you be incrusting? could she be incrusting? could we be incrusting? could you be incrusting? could they be incrusting?
Perfect	V-ing perfect
could I have incrusted? could you have incrusted? could she have incrusted? could we have incrusted? could you have incrusted? could they have incrusted?	could I have been incrusting? could you have been incrusting? could she have been incrusting? could we have been incrusting? could you have been incrusting? could they have been incrusting?

Interro-negative form

Simple form	V-ing form
couldn't I incrust? couldn't you incrust? couldn't she incrust? couldn't we incrust? couldn't you incrust? couldn't they incrust?	couldn't I be incrusting? couldn't you be incrusting? couldn't she be incrusting? couldn't we be incrusting? couldn't you be incrusting? couldn't they be incrusting?
Perfect	V-ing perfect
couldn't I have incrusted? couldn't you have incrusted? couldn't she have incrusted? couldn't we have incrusted? couldn't you have incrusted? couldn't they have incrusted?	couldn't I have been incrusting? couldn't you have been incrusting? couldn't she have been incrusting? couldn't we have been incrusting? couldn't you have been incrusting? couldn't they have been incrusting?