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