English verb conjugation
COULD SLIDE

Irregular verb: slide - slid - slid

Affirmation

Simple form	V-ing form
I could slide you could slide he could slide we could slide you could slide they could slide	I could be sliding you could be sliding he could be sliding we could be sliding you could be sliding they could be sliding
Perfect	V-ing perfect
I could have slid you could have slid he 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 he 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
I couldn't slide you couldn't slide he couldn't slide we couldn't slide you couldn't slide they couldn't slide	I couldn't be sliding you couldn't be sliding he couldn't be sliding we couldn't be sliding you couldn't be sliding they couldn't be sliding
Perfect	V-ing perfect
I couldn't have slid you couldn't have slid he couldn't have slid we couldn't have slid you couldn't have slid they couldn't have slid	I couldn't have been sliding you couldn't have been sliding he couldn't have been sliding we couldn't have been sliding you couldn't have been sliding they couldn't have been sliding

Interrogative form

Simple form	V-ing form
could I slide? could you slide? could he slide? could we slide? could you slide? could they slide?	could I be sliding? could you be sliding? could he be sliding? could we be sliding? could you be sliding? could they be sliding?
Perfect	V-ing perfect
could I have slid? could you have slid? could he 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 he 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
couldn't I slide? couldn't you slide? couldn't he slide? couldn't we slide? couldn't you slide? couldn't they slide?	couldn't I be sliding? couldn't you be sliding? couldn't he be sliding? couldn't we be sliding? couldn't you be sliding? couldn't they be sliding?
Perfect	V-ing perfect
couldn't I have slid? couldn't you have slid? couldn't he have slid? couldn't we have slid? couldn't you have slid? couldn't they have slid?	couldn't I have been sliding? couldn't you have been sliding? couldn't he have been sliding? couldn't we have been sliding? couldn't you have been sliding? couldn't they have been sliding?