could hypothesise
Regular verb: hypothesise - hypothesised- hypothesised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hypothesise
you could hypothesise
he could hypothesise
we could hypothesise
you could hypothesise
they could hypothesise 	I could be hypothesising
you could be hypothesising
he could be hypothesising
we could be hypothesising
you could be hypothesising
they could be hypothesising	I could have hypothesised
you could have hypothesised
he could have hypothesised
we could have hypothesised
you could have hypothesised
they could have hypothesised	I could have been hypothesising
you could have been hypothesising
he could have been hypothesising
we could have been hypothesising
you could have been hypothesising
they could have been hypothesising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hypothesise
you couldn't hypothesise
he couldn't hypothesise
we couldn't hypothesise
you couldn't hypothesise
they couldn't hypothesise 	I couldn't be hypothesising
you couldn't be hypothesising
he couldn't be hypothesising
we couldn't be hypothesising
you couldn't be hypothesising
they couldn't be hypothesising	I couldn't have hypothesised
you couldn't have hypothesised
he couldn't have hypothesised
we couldn't have hypothesised
you couldn't have hypothesised
they couldn't have hypothesised	I couldn't have been hypothesising
you couldn't have been hypothesising
he couldn't have been hypothesising
we couldn't have been hypothesising
you couldn't have been hypothesising
they couldn't have been hypothesising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hypothesise?
could you hypothesise?
could he hypothesise?
could we hypothesise?
could you hypothesise?
could they hypothesise? 	could I be hypothesising?
could you be hypothesising?
could he be hypothesising?
could we be hypothesising?
could you be hypothesising?
could they be hypothesising? 	could I have hypothesised?
could you have hypothesised?
could he have hypothesised?
could we have hypothesised?
could you have hypothesised?
could they have hypothesised? 	could I have been hypothesising?
could you have been hypothesising?
could he have been hypothesising?
could we have been hypothesising?
could you have been hypothesising?
could they have been hypothesising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hypothesise?
couldn't you hypothesise?
couldn't he hypothesise?
couldn't we hypothesise?
couldn't you hypothesise?
couldn't they hypothesise? 	couldn't I be hypothesising?
couldn't you be hypothesising?
couldn't he be hypothesising?
couldn't we be hypothesising?
couldn't you be hypothesising?
couldn't they be hypothesising? 	couldn't I have hypothesised?
couldn't you have hypothesised?
couldn't he have hypothesised?
couldn't we have hypothesised?
couldn't you have hypothesised?
couldn't they have hypothesised? 	couldn't I have been hypothesising?
couldn't you have been hypothesising?
couldn't he have been hypothesising?
couldn't we have been hypothesising?
couldn't you have been hypothesising?
couldn't they have been hypothesising?