can precompress
Regular verb: precompress - precompressed- precompressed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can precompress
you can precompress
he can precompress
we can precompress
you can precompress
they can precompress 	I can be precompressing
you can be precompressing
he can be precompressing
we can be precompressing
you can be precompressing
they can be precompressing	I can have precompressed
you can have precompressed
he can have precompressed
we can have precompressed
you can have precompressed
they can have precompressed	I can have been precompressing
you can have been precompressing
he can have been precompressing
we can have been precompressing
you can have been precompressing
they can have been precompressing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't precompress
you can't precompress
he can't precompress
we can't precompress
you can't precompress
they can't precompress 	I can't be precompressing
you can't be precompressing
he can't be precompressing
we can't be precompressing
you can't be precompressing
they can't be precompressing	I can't have precompressed
you can't have precompressed
he can't have precompressed
we can't have precompressed
you can't have precompressed
they can't have precompressed	I can't have been precompressing
you can't have been precompressing
he can't have been precompressing
we can't have been precompressing
you can't have been precompressing
they can't have been precompressing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I precompress?
can you precompress?
can he precompress?
can we precompress?
can you precompress?
can they precompress? 	can I be precompressing?
can you be precompressing?
can he be precompressing?
can we be precompressing?
can you be precompressing?
can they be precompressing? 	can I have precompressed?
can you have precompressed?
can he have precompressed?
can we have precompressed?
can you have precompressed?
can they have precompressed? 	can I have been precompressing?
can you have been precompressing?
can he have been precompressing?
can we have been precompressing?
can you have been precompressing?
can they have been precompressing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I precompress?
can't you precompress?
can't he precompress?
can't we precompress?
can't you precompress?
can't they precompress? 	can't I be precompressing?
can't you be precompressing?
can't he be precompressing?
can't we be precompressing?
can't you be precompressing?
can't they be precompressing? 	can't I have precompressed?
can't you have precompressed?
can't he have precompressed?
can't we have precompressed?
can't you have precompressed?
can't they have precompressed? 	can't I have been precompressing?
can't you have been precompressing?
can't he have been precompressing?
can't we have been precompressing?
can't you have been precompressing?
can't they have been precompressing?