could slide
Irregular verb: slide - slid- slid

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could slide
you could slide
she could slide
we could slide
you could slide
they could slide 	I could be sliding
you could be sliding
she could be sliding
we could be sliding
you could be sliding
they could be sliding	I could have slid
you could have slid
she could have slid
we could have slid
you could have slid
they could have slid	I could have been sliding
you could have been sliding
she could have been sliding
we could have been sliding
you could have been sliding
they could have been sliding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not slide
you could not slide
she could not slide
we could not slide
you could not slide
they could not slide 	I could not be sliding
you could not be sliding
she could not be sliding
we could not be sliding
you could not be sliding
they could not be sliding	I could not have slid
you could not have slid
she could not have slid
we could not have slid
you could not have slid
they could not have slid	I could not have been sliding
you could not have been sliding
she could not have been sliding
we could not have been sliding
you could not have been sliding
they could not have been sliding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I slide?
could you slide?
could she slide?
could we slide?
could you slide?
could they slide? 	could I be sliding?
could you be sliding?
could she be sliding?
could we be sliding?
could you be sliding?
could they be sliding? 	could I have slid?
could you have slid?
could she have slid?
could we have slid?
could you have slid?
could they have slid? 	could I have been sliding?
could you have been sliding?
could she have been sliding?
could we have been sliding?
could you have been sliding?
could they have been sliding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not slide?
could you not slide?
could she not slide?
could we not slide?
could you not slide?
could they not slide? 	could I not be sliding?
could you not be sliding?
could she not be sliding?
could we not be sliding?
could you not be sliding?
could they not be sliding? 	could I not have slid?
could you not have slid?
could she not have slid?
could we not have slid?
could you not have slid?
could they not have slid? 	could I not have been sliding?
could you not have been sliding?
could she not have been sliding?
could we not have been sliding?
could you not have been sliding?
could they not have been sliding?