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