English verb conjugation
COULD STARBOARD

Regular verb: starboard - starboarded - starboarded

Affirmation

Simple form	V-ing form
I could starboard you could starboard he could starboard we could starboard you could starboard they could starboard	I could be starboarding you could be starboarding he could be starboarding we could be starboarding you could be starboarding they could be starboarding
Perfect	V-ing perfect
I could have starboarded you could have starboarded he could have starboarded we could have starboarded you could have starboarded they could have starboarded	I could have been starboarding you could have been starboarding he could have been starboarding we could have been starboarding you could have been starboarding they could have been starboarding

Negation

Simple form	V-ing form
I couldn't starboard you couldn't starboard he couldn't starboard we couldn't starboard you couldn't starboard they couldn't starboard	I couldn't be starboarding you couldn't be starboarding he couldn't be starboarding we couldn't be starboarding you couldn't be starboarding they couldn't be starboarding
Perfect	V-ing perfect
I couldn't have starboarded you couldn't have starboarded he couldn't have starboarded we couldn't have starboarded you couldn't have starboarded they couldn't have starboarded	I couldn't have been starboarding you couldn't have been starboarding he couldn't have been starboarding we couldn't have been starboarding you couldn't have been starboarding they couldn't have been starboarding

Interrogative form

Simple form	V-ing form
could I starboard? could you starboard? could he starboard? could we starboard? could you starboard? could they starboard?	could I be starboarding? could you be starboarding? could he be starboarding? could we be starboarding? could you be starboarding? could they be starboarding?
Perfect	V-ing perfect
could I have starboarded? could you have starboarded? could he have starboarded? could we have starboarded? could you have starboarded? could they have starboarded?	could I have been starboarding? could you have been starboarding? could he have been starboarding? could we have been starboarding? could you have been starboarding? could they have been starboarding?

Interro-negative form

Simple form	V-ing form
couldn't I starboard? couldn't you starboard? couldn't he starboard? couldn't we starboard? couldn't you starboard? couldn't they starboard?	couldn't I be starboarding? couldn't you be starboarding? couldn't he be starboarding? couldn't we be starboarding? couldn't you be starboarding? couldn't they be starboarding?
Perfect	V-ing perfect
couldn't I have starboarded? couldn't you have starboarded? couldn't he have starboarded? couldn't we have starboarded? couldn't you have starboarded? couldn't they have starboarded?	couldn't I have been starboarding? couldn't you have been starboarding? couldn't he have been starboarding? couldn't we have been starboarding? couldn't you have been starboarding? couldn't they have been starboarding?