can extemporise
Regular verb: extemporise - extemporised- extemporised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can extemporise
you can extemporise
he can extemporise
we can extemporise
you can extemporise
they can extemporise 	I can be extemporising
you can be extemporising
he can be extemporising
we can be extemporising
you can be extemporising
they can be extemporising	I can have extemporised
you can have extemporised
he can have extemporised
we can have extemporised
you can have extemporised
they can have extemporised	I can have been extemporising
you can have been extemporising
he can have been extemporising
we can have been extemporising
you can have been extemporising
they can have been extemporising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't extemporise
you can't extemporise
he can't extemporise
we can't extemporise
you can't extemporise
they can't extemporise 	I can't be extemporising
you can't be extemporising
he can't be extemporising
we can't be extemporising
you can't be extemporising
they can't be extemporising	I can't have extemporised
you can't have extemporised
he can't have extemporised
we can't have extemporised
you can't have extemporised
they can't have extemporised	I can't have been extemporising
you can't have been extemporising
he can't have been extemporising
we can't have been extemporising
you can't have been extemporising
they can't have been extemporising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I extemporise?
can you extemporise?
can he extemporise?
can we extemporise?
can you extemporise?
can they extemporise? 	can I be extemporising?
can you be extemporising?
can he be extemporising?
can we be extemporising?
can you be extemporising?
can they be extemporising? 	can I have extemporised?
can you have extemporised?
can he have extemporised?
can we have extemporised?
can you have extemporised?
can they have extemporised? 	can I have been extemporising?
can you have been extemporising?
can he have been extemporising?
can we have been extemporising?
can you have been extemporising?
can they have been extemporising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I extemporise?
can't you extemporise?
can't he extemporise?
can't we extemporise?
can't you extemporise?
can't they extemporise? 	can't I be extemporising?
can't you be extemporising?
can't he be extemporising?
can't we be extemporising?
can't you be extemporising?
can't they be extemporising? 	can't I have extemporised?
can't you have extemporised?
can't he have extemporised?
can't we have extemporised?
can't you have extemporised?
can't they have extemporised? 	can't I have been extemporising?
can't you have been extemporising?
can't he have been extemporising?
can't we have been extemporising?
can't you have been extemporising?
can't they have been extemporising?