Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could cover blanket you could cover blanket she could cover blanket we could cover blanket you could cover blanket they could cover blanket
V-ing form
I could be cover blanketing you could be cover blanketing she could be cover blanketing we could be cover blanketing you could be cover blanketing they could be cover blanketing
Perfect
I could have cover blanketed you could have cover blanketed she could have cover blanketed we could have cover blanketed you could have cover blanketed they could have cover blanketed
V-ing perfect
I could have been cover blanketing you could have been cover blanketing she could have been cover blanketing we could have been cover blanketing you could have been cover blanketing they could have been cover blanketing
Negation
Simple form
I could not cover blanket you could not cover blanket she could not cover blanket we could not cover blanket you could not cover blanket they could not cover blanket
V-ing form
I could not be cover blanketing you could not be cover blanketing she could not be cover blanketing we could not be cover blanketing you could not be cover blanketing they could not be cover blanketing
Perfect
I could not have cover blanketed you could not have cover blanketed she could not have cover blanketed we could not have cover blanketed you could not have cover blanketed they could not have cover blanketed
V-ing perfect
I could not have been cover blanketing you could not have been cover blanketing she could not have been cover blanketing we could not have been cover blanketing you could not have been cover blanketing they could not have been cover blanketing
Interrogative form
Simple form
could I cover blanket? could you cover blanket? could she cover blanket? could we cover blanket? could you cover blanket? could they cover blanket?
V-ing form
could I be cover blanketing? could you be cover blanketing? could she be cover blanketing? could we be cover blanketing? could you be cover blanketing? could they be cover blanketing?
Perfect
could I have cover blanketed? could you have cover blanketed? could she have cover blanketed? could we have cover blanketed? could you have cover blanketed? could they have cover blanketed?
V-ing perfect
could I have been cover blanketing? could you have been cover blanketing? could she have been cover blanketing? could we have been cover blanketing? could you have been cover blanketing? could they have been cover blanketing?
Interro-negative form
Simple form
could I not cover blanket? could you not cover blanket? could she not cover blanket? could we not cover blanket? could you not cover blanket? could they not cover blanket?
V-ing form
could I not be cover blanketing? could you not be cover blanketing? could she not be cover blanketing? could we not be cover blanketing? could you not be cover blanketing? could they not be cover blanketing?
Perfect
could I not have cover blanketed? could you not have cover blanketed? could she not have cover blanketed? could we not have cover blanketed? could you not have cover blanketed? could they not have cover blanketed?
V-ing perfect
could I not have been cover blanketing? could you not have been cover blanketing? could she not have been cover blanketing? could we not have been cover blanketing? could you not have been cover blanketing? could they not have been cover blanketing?