I could premeditate you could premeditate she could premeditate we could premeditate you could premeditate they could premeditate
V-ing form
I could be premeditating you could be premeditating she could be premeditating we could be premeditating you could be premeditating they could be premeditating
Perfect
I could have premeditated you could have premeditated she could have premeditated we could have premeditated you could have premeditated they could have premeditated
V-ing perfect
I could have been premeditating you could have been premeditating she could have been premeditating we could have been premeditating you could have been premeditating they could have been premeditating
Negation
Simple form
I couldn't premeditate you couldn't premeditate she couldn't premeditate we couldn't premeditate you couldn't premeditate they couldn't premeditate
V-ing form
I couldn't be premeditating you couldn't be premeditating she couldn't be premeditating we couldn't be premeditating you couldn't be premeditating they couldn't be premeditating
Perfect
I couldn't have premeditated you couldn't have premeditated she couldn't have premeditated we couldn't have premeditated you couldn't have premeditated they couldn't have premeditated
V-ing perfect
I couldn't have been premeditating you couldn't have been premeditating she couldn't have been premeditating we couldn't have been premeditating you couldn't have been premeditating they couldn't have been premeditating
Interrogative form
Simple form
could I premeditate? could you premeditate? could she premeditate? could we premeditate? could you premeditate? could they premeditate?
V-ing form
could I be premeditating? could you be premeditating? could she be premeditating? could we be premeditating? could you be premeditating? could they be premeditating?
Perfect
could I have premeditated? could you have premeditated? could she have premeditated? could we have premeditated? could you have premeditated? could they have premeditated?
V-ing perfect
could I have been premeditating? could you have been premeditating? could she have been premeditating? could we have been premeditating? could you have been premeditating? could they have been premeditating?
Interro-negative form
Simple form
couldn't I premeditate? couldn't you premeditate? couldn't she premeditate? couldn't we premeditate? couldn't you premeditate? couldn't they premeditate?
V-ing form
couldn't I be premeditating? couldn't you be premeditating? couldn't she be premeditating? couldn't we be premeditating? couldn't you be premeditating? couldn't they be premeditating?
Perfect
couldn't I have premeditated? couldn't you have premeditated? couldn't she have premeditated? couldn't we have premeditated? couldn't you have premeditated? couldn't they have premeditated?
V-ing perfect
couldn't I have been premeditating? couldn't you have been premeditating? couldn't she have been premeditating? couldn't we have been premeditating? couldn't you have been premeditating? couldn't they have been premeditating?