English verb conjugation
COULD SIDESTROKE

Regular verb: sidestroke - sidestroked - sidestroked

Affirmation

Simple form	V-ing form
I could sidestroke you could sidestroke he could sidestroke we could sidestroke you could sidestroke they could sidestroke	I could be sidestroking you could be sidestroking he could be sidestroking we could be sidestroking you could be sidestroking they could be sidestroking
Perfect	V-ing perfect
I could have sidestroked you could have sidestroked he could have sidestroked we could have sidestroked you could have sidestroked they could have sidestroked	I could have been sidestroking you could have been sidestroking he could have been sidestroking we could have been sidestroking you could have been sidestroking they could have been sidestroking

Negation

Simple form	V-ing form
I couldn't sidestroke you couldn't sidestroke he couldn't sidestroke we couldn't sidestroke you couldn't sidestroke they couldn't sidestroke	I couldn't be sidestroking you couldn't be sidestroking he couldn't be sidestroking we couldn't be sidestroking you couldn't be sidestroking they couldn't be sidestroking
Perfect	V-ing perfect
I couldn't have sidestroked you couldn't have sidestroked he couldn't have sidestroked we couldn't have sidestroked you couldn't have sidestroked they couldn't have sidestroked	I couldn't have been sidestroking you couldn't have been sidestroking he couldn't have been sidestroking we couldn't have been sidestroking you couldn't have been sidestroking they couldn't have been sidestroking

Interrogative form

Simple form	V-ing form
could I sidestroke? could you sidestroke? could he sidestroke? could we sidestroke? could you sidestroke? could they sidestroke?	could I be sidestroking? could you be sidestroking? could he be sidestroking? could we be sidestroking? could you be sidestroking? could they be sidestroking?
Perfect	V-ing perfect
could I have sidestroked? could you have sidestroked? could he have sidestroked? could we have sidestroked? could you have sidestroked? could they have sidestroked?	could I have been sidestroking? could you have been sidestroking? could he have been sidestroking? could we have been sidestroking? could you have been sidestroking? could they have been sidestroking?

Interro-negative form

Simple form	V-ing form
couldn't I sidestroke? couldn't you sidestroke? couldn't he sidestroke? couldn't we sidestroke? couldn't you sidestroke? couldn't they sidestroke?	couldn't I be sidestroking? couldn't you be sidestroking? couldn't he be sidestroking? couldn't we be sidestroking? couldn't you be sidestroking? couldn't they be sidestroking?
Perfect	V-ing perfect
couldn't I have sidestroked? couldn't you have sidestroked? couldn't he have sidestroked? couldn't we have sidestroked? couldn't you have sidestroked? couldn't they have sidestroked?	couldn't I have been sidestroking? couldn't you have been sidestroking? couldn't he have been sidestroking? couldn't we have been sidestroking? couldn't you have been sidestroking? couldn't they have been sidestroking?