Regular verb: theorise - theorised - theorised
Simple form | V-ing form |
I could theorise you could theorise he could theorise we could theorise you could theorise they could theorise | I could be theorising you could be theorising he could be theorising we could be theorising you could be theorising they could be theorising |
Perfect | V-ing perfect |
I could have theorised you could have theorised he could have theorised we could have theorised you could have theorised they could have theorised | I could have been theorising you could have been theorising he could have been theorising we could have been theorising you could have been theorising they could have been theorising |
Simple form | V-ing form |
I couldn't theorise you couldn't theorise he couldn't theorise we couldn't theorise you couldn't theorise they couldn't theorise | I couldn't be theorising you couldn't be theorising he couldn't be theorising we couldn't be theorising you couldn't be theorising they couldn't be theorising |
Perfect | V-ing perfect |
I couldn't have theorised you couldn't have theorised he couldn't have theorised we couldn't have theorised you couldn't have theorised they couldn't have theorised | I couldn't have been theorising you couldn't have been theorising he couldn't have been theorising we couldn't have been theorising you couldn't have been theorising they couldn't have been theorising |
Simple form | V-ing form |
could I theorise? could you theorise? could he theorise? could we theorise? could you theorise? could they theorise? | could I be theorising? could you be theorising? could he be theorising? could we be theorising? could you be theorising? could they be theorising? |
Perfect | V-ing perfect |
could I have theorised? could you have theorised? could he have theorised? could we have theorised? could you have theorised? could they have theorised? | could I have been theorising? could you have been theorising? could he have been theorising? could we have been theorising? could you have been theorising? could they have been theorising? |
Simple form | V-ing form |
couldn't I theorise? couldn't you theorise? couldn't he theorise? couldn't we theorise? couldn't you theorise? couldn't they theorise? | couldn't I be theorising? couldn't you be theorising? couldn't he be theorising? couldn't we be theorising? couldn't you be theorising? couldn't they be theorising? |
Perfect | V-ing perfect |
couldn't I have theorised? couldn't you have theorised? couldn't he have theorised? couldn't we have theorised? couldn't you have theorised? couldn't they have theorised? | couldn't I have been theorising? couldn't you have been theorising? couldn't he have been theorising? couldn't we have been theorising? couldn't you have been theorising? couldn't they have been theorising? |