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