I can conceptualise you can conceptualise he can conceptualise we can conceptualise you can conceptualise they can conceptualise
V-ing form
I can be conceptualising you can be conceptualising he can be conceptualising we can be conceptualising you can be conceptualising they can be conceptualising
Perfect
I can have conceptualised you can have conceptualised he can have conceptualised we can have conceptualised you can have conceptualised they can have conceptualised
V-ing perfect
I can have been conceptualising you can have been conceptualising he can have been conceptualising we can have been conceptualising you can have been conceptualising they can have been conceptualising
Negation
Simple form
I can't conceptualise you can't conceptualise he can't conceptualise we can't conceptualise you can't conceptualise they can't conceptualise
V-ing form
I can't be conceptualising you can't be conceptualising he can't be conceptualising we can't be conceptualising you can't be conceptualising they can't be conceptualising
Perfect
I can't have conceptualised you can't have conceptualised he can't have conceptualised we can't have conceptualised you can't have conceptualised they can't have conceptualised
V-ing perfect
I can't have been conceptualising you can't have been conceptualising he can't have been conceptualising we can't have been conceptualising you can't have been conceptualising they can't have been conceptualising
Interrogative form
Simple form
can I conceptualise? can you conceptualise? can he conceptualise? can we conceptualise? can you conceptualise? can they conceptualise?
V-ing form
can I be conceptualising? can you be conceptualising? can he be conceptualising? can we be conceptualising? can you be conceptualising? can they be conceptualising?
Perfect
can I have conceptualised? can you have conceptualised? can he have conceptualised? can we have conceptualised? can you have conceptualised? can they have conceptualised?
V-ing perfect
can I have been conceptualising? can you have been conceptualising? can he have been conceptualising? can we have been conceptualising? can you have been conceptualising? can they have been conceptualising?
Interro-negative form
Simple form
can't I conceptualise? can't you conceptualise? can't he conceptualise? can't we conceptualise? can't you conceptualise? can't they conceptualise?
V-ing form
can't I be conceptualising? can't you be conceptualising? can't he be conceptualising? can't we be conceptualising? can't you be conceptualising? can't they be conceptualising?
Perfect
can't I have conceptualised? can't you have conceptualised? can't he have conceptualised? can't we have conceptualised? can't you have conceptualised? can't they have conceptualised?
V-ing perfect
can't I have been conceptualising? can't you have been conceptualising? can't he have been conceptualising? can't we have been conceptualising? can't you have been conceptualising? can't they have been conceptualising?