1) Past verb forms a) wrote b) saw c) discovered d) see e) write f) discover 2) Past verb forms a) excavate b) studied c) work d) study e) worked f) excavated 3) Past verb forms a) dug b) dig c) collect d) collected e) analyze f) analyzed 4) Past verb forms a) built b) build c) fight d) fought e) explore f) explored 5) Past verb forms a) notice b) noticed c) found d) find e) searched f) search 6) Past verb forms a) know b) knew c) understand d) understood e) try f) tried 7) Past verb forms a) look b) looked c) observed d) observe e) see f) saw 8) Past verb forms a) studied b) study c) discovered d) discover e) dig f) dug

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