English verb conjugation
COULD CROWD

Regular verb: crowd - crowded - crowded

Affirmation

Simple form	V-ing form
I could crowd you could crowd he could crowd we could crowd you could crowd they could crowd	I could be crowding you could be crowding he could be crowding we could be crowding you could be crowding they could be crowding
Perfect	V-ing perfect
I could have crowded you could have crowded he could have crowded we could have crowded you could have crowded they could have crowded	I could have been crowding you could have been crowding he could have been crowding we could have been crowding you could have been crowding they could have been crowding

Negation

Simple form	V-ing form
I couldn't crowd you couldn't crowd he couldn't crowd we couldn't crowd you couldn't crowd they couldn't crowd	I couldn't be crowding you couldn't be crowding he couldn't be crowding we couldn't be crowding you couldn't be crowding they couldn't be crowding
Perfect	V-ing perfect
I couldn't have crowded you couldn't have crowded he couldn't have crowded we couldn't have crowded you couldn't have crowded they couldn't have crowded	I couldn't have been crowding you couldn't have been crowding he couldn't have been crowding we couldn't have been crowding you couldn't have been crowding they couldn't have been crowding

Interrogative form

Simple form	V-ing form
could I crowd? could you crowd? could he crowd? could we crowd? could you crowd? could they crowd?	could I be crowding? could you be crowding? could he be crowding? could we be crowding? could you be crowding? could they be crowding?
Perfect	V-ing perfect
could I have crowded? could you have crowded? could he have crowded? could we have crowded? could you have crowded? could they have crowded?	could I have been crowding? could you have been crowding? could he have been crowding? could we have been crowding? could you have been crowding? could they have been crowding?

Interro-negative form

Simple form	V-ing form
couldn't I crowd? couldn't you crowd? couldn't he crowd? couldn't we crowd? couldn't you crowd? couldn't they crowd?	couldn't I be crowding? couldn't you be crowding? couldn't he be crowding? couldn't we be crowding? couldn't you be crowding? couldn't they be crowding?
Perfect	V-ing perfect
couldn't I have crowded? couldn't you have crowded? couldn't he have crowded? couldn't we have crowded? couldn't you have crowded? couldn't they have crowded?	couldn't I have been crowding? couldn't you have been crowding? couldn't he have been crowding? couldn't we have been crowding? couldn't you have been crowding? couldn't they have been crowding?