English verb conjugation
COULD SEESAW

Regular verb: seesaw - seesawed - seesawed

Affirmation

Simple form	V-ing form
I could seesaw you could seesaw he could seesaw we could seesaw you could seesaw they could seesaw	I could be seesawing you could be seesawing he could be seesawing we could be seesawing you could be seesawing they could be seesawing
Perfect	V-ing perfect
I could have seesawed you could have seesawed he could have seesawed we could have seesawed you could have seesawed they could have seesawed	I could have been seesawing you could have been seesawing he could have been seesawing we could have been seesawing you could have been seesawing they could have been seesawing

Negation

Simple form	V-ing form
I couldn't seesaw you couldn't seesaw he couldn't seesaw we couldn't seesaw you couldn't seesaw they couldn't seesaw	I couldn't be seesawing you couldn't be seesawing he couldn't be seesawing we couldn't be seesawing you couldn't be seesawing they couldn't be seesawing
Perfect	V-ing perfect
I couldn't have seesawed you couldn't have seesawed he couldn't have seesawed we couldn't have seesawed you couldn't have seesawed they couldn't have seesawed	I couldn't have been seesawing you couldn't have been seesawing he couldn't have been seesawing we couldn't have been seesawing you couldn't have been seesawing they couldn't have been seesawing

Interrogative form

Simple form	V-ing form
could I seesaw? could you seesaw? could he seesaw? could we seesaw? could you seesaw? could they seesaw?	could I be seesawing? could you be seesawing? could he be seesawing? could we be seesawing? could you be seesawing? could they be seesawing?
Perfect	V-ing perfect
could I have seesawed? could you have seesawed? could he have seesawed? could we have seesawed? could you have seesawed? could they have seesawed?	could I have been seesawing? could you have been seesawing? could he have been seesawing? could we have been seesawing? could you have been seesawing? could they have been seesawing?

Interro-negative form

Simple form	V-ing form
couldn't I seesaw? couldn't you seesaw? couldn't he seesaw? couldn't we seesaw? couldn't you seesaw? couldn't they seesaw?	couldn't I be seesawing? couldn't you be seesawing? couldn't he be seesawing? couldn't we be seesawing? couldn't you be seesawing? couldn't they be seesawing?
Perfect	V-ing perfect
couldn't I have seesawed? couldn't you have seesawed? couldn't he have seesawed? couldn't we have seesawed? couldn't you have seesawed? couldn't they have seesawed?	couldn't I have been seesawing? couldn't you have been seesawing? couldn't he have been seesawing? couldn't we have been seesawing? couldn't you have been seesawing? couldn't they have been seesawing?