English verb conjugation
COULD INTERARCH

Regular verb: interarch - interarched - interarched

Affirmation

Simple form	V-ing form
I could interarch you could interarch she could interarch we could interarch you could interarch they could interarch	I could be interarching you could be interarching she could be interarching we could be interarching you could be interarching they could be interarching
Perfect	V-ing perfect
I could have interarched you could have interarched she could have interarched we could have interarched you could have interarched they could have interarched	I could have been interarching you could have been interarching she could have been interarching we could have been interarching you could have been interarching they could have been interarching

Negation

Simple form	V-ing form
I couldn't interarch you couldn't interarch she couldn't interarch we couldn't interarch you couldn't interarch they couldn't interarch	I couldn't be interarching you couldn't be interarching she couldn't be interarching we couldn't be interarching you couldn't be interarching they couldn't be interarching
Perfect	V-ing perfect
I couldn't have interarched you couldn't have interarched she couldn't have interarched we couldn't have interarched you couldn't have interarched they couldn't have interarched	I couldn't have been interarching you couldn't have been interarching she couldn't have been interarching we couldn't have been interarching you couldn't have been interarching they couldn't have been interarching

Interrogative form

Simple form	V-ing form
could I interarch? could you interarch? could she interarch? could we interarch? could you interarch? could they interarch?	could I be interarching? could you be interarching? could she be interarching? could we be interarching? could you be interarching? could they be interarching?
Perfect	V-ing perfect
could I have interarched? could you have interarched? could she have interarched? could we have interarched? could you have interarched? could they have interarched?	could I have been interarching? could you have been interarching? could she have been interarching? could we have been interarching? could you have been interarching? could they have been interarching?

Interro-negative form

Simple form	V-ing form
couldn't I interarch? couldn't you interarch? couldn't she interarch? couldn't we interarch? couldn't you interarch? couldn't they interarch?	couldn't I be interarching? couldn't you be interarching? couldn't she be interarching? couldn't we be interarching? couldn't you be interarching? couldn't they be interarching?
Perfect	V-ing perfect
couldn't I have interarched? couldn't you have interarched? couldn't she have interarched? couldn't we have interarched? couldn't you have interarched? couldn't they have interarched?	couldn't I have been interarching? couldn't you have been interarching? couldn't she have been interarching? couldn't we have been interarching? couldn't you have been interarching? couldn't they have been interarching?