can proofread
Irregular verb: proofread - proofread- proofread

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can proofread
you can proofread
he can proofread
we can proofread
you can proofread
they can proofread 	I can be proofreading
you can be proofreading
he can be proofreading
we can be proofreading
you can be proofreading
they can be proofreading	I can have proofread
you can have proofread
he can have proofread
we can have proofread
you can have proofread
they can have proofread	I can have been proofreading
you can have been proofreading
he can have been proofreading
we can have been proofreading
you can have been proofreading
they can have been proofreading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't proofread
you can't proofread
he can't proofread
we can't proofread
you can't proofread
they can't proofread 	I can't be proofreading
you can't be proofreading
he can't be proofreading
we can't be proofreading
you can't be proofreading
they can't be proofreading	I can't have proofread
you can't have proofread
he can't have proofread
we can't have proofread
you can't have proofread
they can't have proofread	I can't have been proofreading
you can't have been proofreading
he can't have been proofreading
we can't have been proofreading
you can't have been proofreading
they can't have been proofreading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I proofread?
can you proofread?
can he proofread?
can we proofread?
can you proofread?
can they proofread? 	can I be proofreading?
can you be proofreading?
can he be proofreading?
can we be proofreading?
can you be proofreading?
can they be proofreading? 	can I have proofread?
can you have proofread?
can he have proofread?
can we have proofread?
can you have proofread?
can they have proofread? 	can I have been proofreading?
can you have been proofreading?
can he have been proofreading?
can we have been proofreading?
can you have been proofreading?
can they have been proofreading? 	

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