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