Using Excel for Mac (Version 16.112.4), how to make formula copy down?

Assume I have the following table:

Row nr Col A Col B Col C
1 Field with Formula – –
2 =A1 – –
3 =A2 – –
4 =A3 – Field to check for “word”
5 =A4 – –
6 =A5 – –
7 =A6 – –
8 Next Field with Formula – –
9 =A8 – –
10 =A9 – –
11 =A10 – Next field to check
12 =A11 – –
13 =A12 – –
14 =A13 – –
15 Task repeats… … …

When I use in A1 (Field with Formula)
=IF(ISNUMBER(SEARCH("Word";C4));"With Word";"Does not contain"), I correctly receive: “With Word”.
When I use in Field A8 (Next Field with Formula) =IF(ISNUMBER(SEARCH("Word";C11));"With Word";"Does not contain"), I correctly receive: “Does not contain”.

However, I always have to copy blocks of eight rows in column A down in order to have the same structure in the next block of cells, can’t use autofill.

So, I tried using =IF(ISNUMBER(SEARCH("Word";ADDRESS(ROW()+3;COLUMN()+2)));"With Word";"Does not contain"), however, this ALWAYS(i.e.,in both, A1 and A8) “Does not contain”. Which is obviously a mistake.

So, now I use =IF(ISNUMBER(SEARCH("Word", INDEX(C:C, ROW()+3))), "With Word", "Does not contain") in all the fields with formula text in it, however, I still have to manually copy all blocks of seven. How to make Excel “learn this pattern”, so I can drag it down and it copies appropriately?