could boot
Regular verb: boot - booted- booted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could boot
you could boot
she could boot
we could boot
you could boot
they could boot 	I could be booting
you could be booting
she could be booting
we could be booting
you could be booting
they could be booting	I could have booted
you could have booted
she could have booted
we could have booted
you could have booted
they could have booted	I could have been booting
you could have been booting
she could have been booting
we could have been booting
you could have been booting
they could have been booting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't boot
you couldn't boot
she couldn't boot
we couldn't boot
you couldn't boot
they couldn't boot 	I couldn't be booting
you couldn't be booting
she couldn't be booting
we couldn't be booting
you couldn't be booting
they couldn't be booting	I couldn't have booted
you couldn't have booted
she couldn't have booted
we couldn't have booted
you couldn't have booted
they couldn't have booted	I couldn't have been booting
you couldn't have been booting
she couldn't have been booting
we couldn't have been booting
you couldn't have been booting
they couldn't have been booting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I boot?
could you boot?
could she boot?
could we boot?
could you boot?
could they boot? 	could I be booting?
could you be booting?
could she be booting?
could we be booting?
could you be booting?
could they be booting? 	could I have booted?
could you have booted?
could she have booted?
could we have booted?
could you have booted?
could they have booted? 	could I have been booting?
could you have been booting?
could she have been booting?
could we have been booting?
could you have been booting?
could they have been booting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I boot?
couldn't you boot?
couldn't she boot?
couldn't we boot?
couldn't you boot?
couldn't they boot? 	couldn't I be booting?
couldn't you be booting?
couldn't she be booting?
couldn't we be booting?
couldn't you be booting?
couldn't they be booting? 	couldn't I have booted?
couldn't you have booted?
couldn't she have booted?
couldn't we have booted?
couldn't you have booted?
couldn't they have booted? 	couldn't I have been booting?
couldn't you have been booting?
couldn't she have been booting?
couldn't we have been booting?
couldn't you have been booting?
couldn't they have been booting?