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