English verb conjugation
COULD ARRIVE

Regular verb: arrive - arrived - arrived

Affirmation

Simple form	V-ing form
I could arrive you could arrive she could arrive we could arrive you could arrive they could arrive	I could be arriving you could be arriving she could be arriving we could be arriving you could be arriving they could be arriving
Perfect	V-ing perfect
I could have arrived you could have arrived she could have arrived we could have arrived you could have arrived they could have arrived	I could have been arriving you could have been arriving she could have been arriving we could have been arriving you could have been arriving they could have been arriving

Negation

Simple form	V-ing form
I couldn't arrive you couldn't arrive she couldn't arrive we couldn't arrive you couldn't arrive they couldn't arrive	I couldn't be arriving you couldn't be arriving she couldn't be arriving we couldn't be arriving you couldn't be arriving they couldn't be arriving
Perfect	V-ing perfect
I couldn't have arrived you couldn't have arrived she couldn't have arrived we couldn't have arrived you couldn't have arrived they couldn't have arrived	I couldn't have been arriving you couldn't have been arriving she couldn't have been arriving we couldn't have been arriving you couldn't have been arriving they couldn't have been arriving

Interrogative form

Simple form	V-ing form
could I arrive? could you arrive? could she arrive? could we arrive? could you arrive? could they arrive?	could I be arriving? could you be arriving? could she be arriving? could we be arriving? could you be arriving? could they be arriving?
Perfect	V-ing perfect
could I have arrived? could you have arrived? could she have arrived? could we have arrived? could you have arrived? could they have arrived?	could I have been arriving? could you have been arriving? could she have been arriving? could we have been arriving? could you have been arriving? could they have been arriving?

Interro-negative form

Simple form	V-ing form
couldn't I arrive? couldn't you arrive? couldn't she arrive? couldn't we arrive? couldn't you arrive? couldn't they arrive?	couldn't I be arriving? couldn't you be arriving? couldn't she be arriving? couldn't we be arriving? couldn't you be arriving? couldn't they be arriving?
Perfect	V-ing perfect
couldn't I have arrived? couldn't you have arrived? couldn't she have arrived? couldn't we have arrived? couldn't you have arrived? couldn't they have arrived?	couldn't I have been arriving? couldn't you have been arriving? couldn't she have been arriving? couldn't we have been arriving? couldn't you have been arriving? couldn't they have been arriving?