I could please you could please he could please we could please you could please they could please
V-ing form
I could be pleasing you could be pleasing he could be pleasing we could be pleasing you could be pleasing they could be pleasing
Perfect
I could have pleased you could have pleased he could have pleased we could have pleased you could have pleased they could have pleased
V-ing perfect
I could have been pleasing you could have been pleasing he could have been pleasing we could have been pleasing you could have been pleasing they could have been pleasing
Negation
Simple form
I couldn't please you couldn't please he couldn't please we couldn't please you couldn't please they couldn't please
V-ing form
I couldn't be pleasing you couldn't be pleasing he couldn't be pleasing we couldn't be pleasing you couldn't be pleasing they couldn't be pleasing
Perfect
I couldn't have pleased you couldn't have pleased he couldn't have pleased we couldn't have pleased you couldn't have pleased they couldn't have pleased
V-ing perfect
I couldn't have been pleasing you couldn't have been pleasing he couldn't have been pleasing we couldn't have been pleasing you couldn't have been pleasing they couldn't have been pleasing
Interrogative form
Simple form
could I please? could you please? could he please? could we please? could you please? could they please?
V-ing form
could I be pleasing? could you be pleasing? could he be pleasing? could we be pleasing? could you be pleasing? could they be pleasing?
Perfect
could I have pleased? could you have pleased? could he have pleased? could we have pleased? could you have pleased? could they have pleased?
V-ing perfect
could I have been pleasing? could you have been pleasing? could he have been pleasing? could we have been pleasing? could you have been pleasing? could they have been pleasing?
Interro-negative form
Simple form
couldn't I please? couldn't you please? couldn't he please? couldn't we please? couldn't you please? couldn't they please?
V-ing form
couldn't I be pleasing? couldn't you be pleasing? couldn't he be pleasing? couldn't we be pleasing? couldn't you be pleasing? couldn't they be pleasing?
Perfect
couldn't I have pleased? couldn't you have pleased? couldn't he have pleased? couldn't we have pleased? couldn't you have pleased? couldn't they have pleased?
V-ing perfect
couldn't I have been pleasing? couldn't you have been pleasing? couldn't he have been pleasing? couldn't we have been pleasing? couldn't you have been pleasing? couldn't they have been pleasing?